Insights
Research and field notes
Long-form writing on market data infrastructure, systematic strategies, and the corporate-action signals that drive event-driven trading.
- June 16, 2026
Where to Find Data on Stocks Likely to Move Big Tomorrow
By Alphanume Team
- June 15, 2026
How to Get a Daily List of Predicted Stock Movers via API
By Alphanume Team
- June 14, 2026
Where to Find Momentum Stock Index Constituents Data
By Alphanume Team
- June 13, 2026
How to Track a Rules-Based Momentum Strategy with an API
By Alphanume Team
- June 12, 2026
Where to Find the Expected SPX 0-DTE Trading Range
By Alphanume Team
- June 11, 2026
How to Get SPX 0-DTE Expected Move Data via API
By Alphanume Team
- June 10, 2026
Where to Find a Daily Risk-On vs Risk-Off Market Signal
By Alphanume Team
- June 10, 2026
Computing Cumulative Abnormal Returns in Pandas
By Alphanume Team
- June 10, 2026
Backtesting a Short-Selling Strategy in Python
By Alphanume Team
- June 10, 2026
How to Get Stock Data With a REST API in Python
By Alphanume Team
- June 10, 2026
How to Pull Historical Market Cap in Python
By Alphanume Team
- June 10, 2026
What Is Alternative Data in Trading?
By Alphanume Team
- June 10, 2026
Using Search and Wikipedia Trends as Alt-Data
By Alphanume Team
- June 10, 2026
What Is Retail Attention and How to Measure It
By Alphanume Team
- June 10, 2026
Can Wikipedia Page Views Predict Stock Moves?
By Alphanume Team
- June 10, 2026
What Happens to a Stock in Bankruptcy?
By Alphanume Team
- June 10, 2026
Chapter 7 vs Chapter 11 vs Chapter 15
By Alphanume Team
- June 10, 2026
What Is Chapter 11 Bankruptcy?
By Alphanume Team
- June 10, 2026
What Is a Corporate Default?
By Alphanume Team
- June 10, 2026
What Is Max Pain in Options?
By Alphanume Team
- June 10, 2026
What Is the Expected Move and How to Calculate It
By Alphanume Team
- June 10, 2026
What Is Dealer Gamma Exposure (GEX)?
By Alphanume Team
- June 10, 2026
How 0-DTE Options Work: Mechanics and Risks
By Alphanume Team
- June 10, 2026
What Is Delta in Options Trading?
By Alphanume Team
- June 10, 2026
Implied Volatility: What It Is and How to Solve For It
By Alphanume Team
- June 10, 2026
How to Calculate Option Greeks (Delta, Gamma, Theta, Vega, Rho)
By Alphanume Team
- June 10, 2026
Black-Scholes Formula Explained (With a Calculator)
By Alphanume Team
- June 9, 2026
How to Get a Stock Market Risk Regime Indicator via API
By Alphanume Team
- June 9, 2026
How to Query SEC EDGAR Filings With Python
By Alphanume Team
- June 9, 2026
Building a Survivorship-Free Universe in Python
By Alphanume Team
- June 9, 2026
How to Calculate Abnormal Returns in Python
By Alphanume Team
- June 9, 2026
How to Run an Event Study in Python
By Alphanume Team
- June 9, 2026
What Is a Momentum Factor?
By Alphanume Team
- June 9, 2026
How to Track 8-K Filing Frequency
By Alphanume Team
- June 9, 2026
What Does a Spike in SEC Filings Mean?
By Alphanume Team
- June 9, 2026
SEC Filing Velocity as an Early-Warning Signal
By Alphanume Team
- June 9, 2026
What Is Distressed Debt?
By Alphanume Team
- June 9, 2026
How to Calculate the Altman Z-Score
By Alphanume Team
- June 9, 2026
The Altman Z-Score, Explained
By Alphanume Team
- June 9, 2026
What Is a Going-Concern Qualification?
By Alphanume Team
- June 9, 2026
Vanna and Charm Flows, Explained
By Alphanume Team
- June 9, 2026
What Is Charm (Delta Decay)?
By Alphanume Team
- June 9, 2026
What Is Vanna and How Does It Affect Markets?
By Alphanume Team
- June 9, 2026
Why Does SPX Pin to Strikes Near Expiration?
By Alphanume Team
- June 9, 2026
What Is Rho in Options Pricing?
By Alphanume Team
- June 9, 2026
What Is Vega (Volatility Sensitivity)?
By Alphanume Team
- June 9, 2026
What Is Theta (Time Decay) in Options?
By Alphanume Team
- June 9, 2026
What Is Gamma and Why It Matters
By Alphanume Team
- June 8, 2026
Where to Find Implied vs Realized Volatility Premium Data
By Alphanume Team
- June 8, 2026
Calculating Implied Volatility in Python
By Alphanume Team
- June 8, 2026
Black-Scholes in Python (From Scratch)
By Alphanume Team
- June 8, 2026
How to Compute Option Greeks in Python
By Alphanume Team
- June 8, 2026
Parsing 424B5 Offering Filings in Python
By Alphanume Team
- June 8, 2026
Momentum vs Mean Reversion
By Alphanume Team
- June 8, 2026
What Is Factor Investing?
By Alphanume Team
- June 8, 2026
How to Build a Momentum Strategy
By Alphanume Team
- June 8, 2026
Cross-Sectional vs Time-Series Momentum
By Alphanume Team
- June 8, 2026
Out-of-Court vs In-Court Restructuring
By Alphanume Team
- June 8, 2026
What Is a Debt Restructuring?
By Alphanume Team
- June 8, 2026
What Is a Cross-Default Provision?
By Alphanume Team
- June 8, 2026
What Is a Debt Covenant Breach?
By Alphanume Team
- June 8, 2026
VIX vs Realized Volatility
By Alphanume Team
- June 8, 2026
What Is the VIX and How Is It Calculated?
By Alphanume Team
- June 8, 2026
Dealer Positioning, Explained for Traders
By Alphanume Team
- June 8, 2026
What Is a Gamma Squeeze?
By Alphanume Team
- June 8, 2026
How to Price a Call Option
By Alphanume Team
- June 8, 2026
American vs European Options Pricing
By Alphanume Team
- June 8, 2026
Binomial Option Pricing Model, Step by Step
By Alphanume Team
- June 8, 2026
Put-Call Parity, Explained
By Alphanume Team
- June 8, 2026
Academic vs Commercial Data: CRSP/WRDS vs APIs
By Alphanume Team
- June 8, 2026
Options Data for an MFE Volatility Project
By Alphanume Team
- June 8, 2026
Short-Selling Research Projects for Students
By Alphanume Team
- June 8, 2026
Do You Need a Data Vendor or a Research-Dataset Provider?
By Alphanume Team
- June 8, 2026
Nasdaq Data Link vs Polygon (Massive) for Quant Research
By Alphanume Team
- June 8, 2026
CRSP vs WRDS for Academic Quant Research
By Alphanume Team
- June 8, 2026
Bloomberg Terminal vs FactSet for Quant Workflows
By Alphanume Team
- June 8, 2026
Intrinio vs FinancialModelingPrep for Quant Data
By Alphanume Team
- June 8, 2026
Tiingo vs Alpha Vantage for EOD Data
By Alphanume Team
- June 7, 2026
How to Screen for Rich and Cheap Options by IV/HV Ratio
By Alphanume Team
- June 7, 2026
Building a Backtester From Scratch: Data Requirements
By Alphanume Team
- June 7, 2026
Quant Finance Interview Projects Using Real Data
By Alphanume Team
- June 7, 2026
How to Get Point-in-Time Data on a Student Budget
By Alphanume Team
- June 7, 2026
Best APIs for a Student Algorithmic Trading Project
By Alphanume Team
- June 7, 2026
Finnhub vs Polygon (Massive) for Algo Trading
By Alphanume Team
- June 7, 2026
Ortex vs S3 Partners: Short-Interest Data Compared
By Alphanume Team
- June 7, 2026
EODHD vs FinancialModelingPrep for Fundamentals
By Alphanume Team
- June 7, 2026
Polygon.io (Massive) vs Alpha Vantage for Quants
By Alphanume Team
- June 7, 2026
ORATS vs IVolatility: Options Analytics Compared
By Alphanume Team
- June 7, 2026
Databento vs algoseek: Which Intraday Data for Quants?
By Alphanume Team
- June 6, 2026
Where to Find Historical IV Rank Data
By Alphanume Team
- June 6, 2026
Replicating a Published Anomaly: A Student Guide
By Alphanume Team
- June 6, 2026
How to Do an Event Study for a Finance Thesis
By Alphanume Team
- June 6, 2026
Imperial, Oxford, and LSE Quant Master's: Data Access
By Alphanume Team
- June 6, 2026
Stooq Alternatives for Free Historical Data
By Alphanume Team
- June 6, 2026
QuantConnect Data Alternatives for Custom Research
By Alphanume Team
- June 6, 2026
Alpaca Market Data Alternatives for Quants
By Alphanume Team
- June 6, 2026
yfinance Alternatives for Reliable Backtests
By Alphanume Team
- June 6, 2026
Interactive Brokers API as a Data Source: Alternatives
By Alphanume Team
- June 6, 2026
algoseek Alternatives for Research-Grade Intraday
By Alphanume Team
- June 6, 2026
Tick Data Alternatives for Independent Quants
By Alphanume Team
- June 5, 2026
How to Get IV Rank and IV Percentile Data via API
By Alphanume Team
- June 5, 2026
Handling Corporate Actions (Splits/Dividends) in Python
By Alphanume Team
- June 5, 2026
How to Backtest a Momentum Strategy in Python
By Alphanume Team
- June 5, 2026
Computing Bond Duration and Convexity in Python
By Alphanume Team
- June 5, 2026
How to Price a Bond in Python
By Alphanume Team
- June 5, 2026
What Is Overnight Drift?
By Alphanume Team
- June 5, 2026
What Causes a Stock to Gap Up or Down?
By Alphanume Team
- June 5, 2026
How to Build a Daily Movers Screener
By Alphanume Team
- June 5, 2026
What Is the 12-1 Momentum Signal?
By Alphanume Team
- June 5, 2026
What Is a Stock Delisting and What Triggers It?
By Alphanume Team
- June 5, 2026
What Happens to Shareholders in Chapter 11?
By Alphanume Team
- June 5, 2026
What Is the Absolute Priority Rule?
By Alphanume Team
- June 5, 2026
What Is DIP (Debtor-in-Possession) Financing?
By Alphanume Team
- June 5, 2026
What Is a Strangle?
By Alphanume Team
- June 5, 2026
What Is a Straddle and How to Price One
By Alphanume Team
- June 5, 2026
What Is the Term Structure of Volatility?
By Alphanume Team
- June 5, 2026
What Is the Volatility Risk Premium?
By Alphanume Team
- June 5, 2026
The Volatility Smile and Skew, Explained
By Alphanume Team
- June 5, 2026
Option Moneyness: ITM, ATM, and OTM Explained
By Alphanume Team
- June 5, 2026
Intrinsic Value vs Extrinsic Value in Options
By Alphanume Team
- June 5, 2026
How to Price a Put Option
By Alphanume Team
- June 5, 2026
MIT MFin: Data for Research Projects
By Alphanume Team
- June 5, 2026
Stanford MS&E Quant Projects: Data Sources
By Alphanume Team
- June 5, 2026
University of Chicago Financial Math: Research Data
By Alphanume Team
- June 5, 2026
Georgia Tech QCF: Data for Projects
By Alphanume Team
- June 5, 2026
WRDS Alternatives After Graduation
By Alphanume Team
- June 5, 2026
CRSP Alternatives for Non-Academic Researchers
By Alphanume Team
- June 5, 2026
Cboe DataShop Alternatives for Options Data
By Alphanume Team
- June 5, 2026
IVolatility Alternatives for Options Vol Data
By Alphanume Team
- June 5, 2026
Fintel Alternatives for Short and Ownership Data
By Alphanume Team
- June 5, 2026
S3 Partners Alternatives for Short-Selling Data
By Alphanume Team
- June 4, 2026
Where to Find Volatility-of-Volatility Data by Ticker
By Alphanume Team
- June 4, 2026
Resampling Intraday Data With Pandas
By Alphanume Team
- June 4, 2026
How to Compute Realized Volatility in Python
By Alphanume Team
- June 4, 2026
Pulling Optionable Tickers via API in Python
By Alphanume Team
- June 4, 2026
How to Build a Dilution Screener in Python
By Alphanume Team
- June 4, 2026
What Is Market Breadth and How to Measure It
By Alphanume Team
- June 4, 2026
How to Classify Stocks by Sector and Industry
By Alphanume Team
- June 4, 2026
What Is a Sector Rotation Strategy?
By Alphanume Team
- June 4, 2026
Volume as a Predictor of Volatility
By Alphanume Team
- June 4, 2026
What Is the Recovery Rate in a Default?
By Alphanume Team
- June 4, 2026
How to Find Companies at Risk of Default With Data
By Alphanume Team
- June 4, 2026
Reverse Stock Splits and the Delisting Link
By Alphanume Team
- June 4, 2026
NYSE and Nasdaq Delisting Criteria, Explained
By Alphanume Team
- June 4, 2026
What Is Realized Volatility and How to Compute It
By Alphanume Team
- June 4, 2026
SPX vs SPY Options: Key Differences
By Alphanume Team
- June 4, 2026
How to Trade the Expected Move
By Alphanume Team
- June 4, 2026
What Is an Iron Condor?
By Alphanume Team
- June 4, 2026
How Dividends Affect Option Pricing
By Alphanume Team
- June 4, 2026
Option Payoff Diagrams, Explained
By Alphanume Team
- June 4, 2026
How to Calculate an Option's Break-Even Price
By Alphanume Team
- June 4, 2026
Historical vs Implied Volatility
By Alphanume Team
- June 4, 2026
Cornell Financial Engineering: Data Sources
By Alphanume Team
- June 4, 2026
Columbia MFE / MAFN: Research Datasets
By Alphanume Team
- June 4, 2026
UC Berkeley MFE: Capstone Data Sources
By Alphanume Team
- June 4, 2026
Ortex Alternatives for Short Interest Data
By Alphanume Team
- June 4, 2026
Unusual Whales Alternatives for Options Flow Research
By Alphanume Team
- June 4, 2026
Quiver Quantitative Alternatives for Alt-Data Signals
By Alphanume Team
- June 4, 2026
Sentieo Alternatives for Quant Document Research
By Alphanume Team
- June 4, 2026
AlphaSense Alternatives for Filing Research
By Alphanume Team
- June 4, 2026
YCharts Alternatives for Data-Driven Research
By Alphanume Team
- June 4, 2026
Koyfin Alternatives for Quantitative Workflows
By Alphanume Team
- June 3, 2026
How to Measure How Unstable a Stock's Volatility Is
By Alphanume Team
- June 3, 2026
Computing Sharpe and Sortino Ratios in Python
By Alphanume Team
- June 3, 2026
How to Plot an Equity Curve in Python
By Alphanume Team
- June 3, 2026
Merging Point-in-Time Data Without Look-Ahead in Pandas
By Alphanume Team
- June 3, 2026
How to Calculate Rolling Returns in Pandas
By Alphanume Team
- June 3, 2026
What Is Signal Decay in Quant Strategies?
By Alphanume Team
- June 3, 2026
Combining Alt-Data Signals Without Overfitting
By Alphanume Team
- June 3, 2026
How to Build a Distress Screener
By Alphanume Team
- June 3, 2026
Bankruptcy as a Short Signal: What the Data Shows
By Alphanume Team
- June 3, 2026
What Is a Credit Event?
By Alphanume Team
- June 3, 2026
Default Rate vs Distress Ratio
By Alphanume Team
- June 3, 2026
How to Read an Options Chain
By Alphanume Team
- June 3, 2026
0-DTE and Intraday Volatility, Explained
By Alphanume Team
- June 3, 2026
Implied Move From a Straddle Price
By Alphanume Team
- June 3, 2026
Variance vs Volatility: What's the Difference?
By Alphanume Team
- June 3, 2026
Yield to Maturity (YTM), Explained
By Alphanume Team
- June 3, 2026
How to Price a Bond (With a Calculator)
By Alphanume Team
- June 3, 2026
What Is the Put-Call Ratio?
By Alphanume Team
- June 3, 2026
Open Interest vs Volume in Options
By Alphanume Team
- June 3, 2026
NYU Courant / Tandon MFE: Data for Coursework
By Alphanume Team
- June 3, 2026
Princeton MFin: Research Data Sources
By Alphanume Team
- June 3, 2026
CMU MSCF: Data for Projects and Theses
By Alphanume Team
- June 3, 2026
Baruch MFE: Data Sources for the Capstone
By Alphanume Team
- June 3, 2026
Xignite Alternatives for Developers
By Alphanume Team
- June 3, 2026
QuoteMedia Alternatives for Market Data
By Alphanume Team
- June 3, 2026
Norgate Data Alternatives for Systematic Backtesting
By Alphanume Team
- June 3, 2026
Sharadar Alternatives for Fundamental Quant Data
By Alphanume Team
- June 3, 2026
Life After IEX Cloud: Best Replacement Data APIs
By Alphanume Team
- June 3, 2026
Marketstack Alternatives for Quant Projects
By Alphanume Team
- June 2, 2026
Where to Find Historical Earnings Implied vs Realized Move Data
By Alphanume Team
- June 2, 2026
Building a Risk-Regime Filter in Python
By Alphanume Team
- June 2, 2026
How to Schedule a Daily Data Pull (Cron + Python)
By Alphanume Team
- June 2, 2026
Vectorized vs Event-Driven Backtesting in Python
By Alphanume Team
- June 2, 2026
How to Calculate Max Drawdown in Python
By Alphanume Team
- June 2, 2026
How to Read a Going-Concern Footnote in a 10-K
By Alphanume Team
- June 2, 2026
Solvency vs Liquidity: What's the Difference?
By Alphanume Team
- June 2, 2026
Liquidation vs Reorganization, Explained
By Alphanume Team
- June 2, 2026
What Is a Section 363 Sale?
By Alphanume Team
- June 2, 2026
What Drives Index Option Pricing Intraday?
By Alphanume Team
- June 2, 2026
What Is Options Skew and What Does It Tell You?
By Alphanume Team
- June 2, 2026
Current Yield vs Yield to Maturity
By Alphanume Team
- June 2, 2026
What Is Modified Duration?
By Alphanume Team
- June 2, 2026
What Is Macaulay Duration?
By Alphanume Team
- June 2, 2026
Bond Duration vs Convexity
By Alphanume Team
- June 2, 2026
How to Build a Quant Research Portfolio That Gets Interviews
By Alphanume Team
- June 2, 2026
Event-Study Project Ideas for MFE Students
By Alphanume Team
- June 2, 2026
Free vs Paid Market Data for Quant Finance Students
By Alphanume Team
- June 2, 2026
Best Datasets for an MFE Capstone Project
By Alphanume Team
- June 2, 2026
Twelve Data Alternatives for Algorithmic Trading
By Alphanume Team
- June 2, 2026
Tiingo Alternatives for Quant Researchers
By Alphanume Team
- June 2, 2026
Finnhub Alternatives for Systematic Traders
By Alphanume Team
- June 2, 2026
EOD Historical Data (EODHD) Alternatives for Quant Researchers
By Alphanume Team
- June 2, 2026
Intrinio Alternatives for Quantitative Research
By Alphanume Team
- June 2, 2026
S&P Capital IQ Alternatives for Small Quant Teams
By Alphanume Team
- June 2, 2026
Refinitiv / LSEG Data Alternatives for Independent Quants
By Alphanume Team
- June 1, 2026
How to Find Out If a Stock Over- or Under-Prices Its Earnings
By Alphanume Team
- June 1, 2026
Zero-Coupon Bond Pricing
By Alphanume Team
- June 1, 2026
What Is the Yield Curve?
By Alphanume Team
- June 1, 2026
Clean Price vs Dirty Price (Accrued Interest)
By Alphanume Team
- June 1, 2026
What Is a Coupon Rate?
By Alphanume Team
- June 1, 2026
What Is an S-3 Shelf Registration?
By Alphanume Team
- May 31, 2026
Where to Find Stock Dilution and Shelf Offering Data
By Alphanume Team
- May 31, 2026
What Is a 424B5 Filing? (Equity Offering Guide)
By Alphanume Team
- May 30, 2026
How to Track S-1 and Secondary Offering Filings via API
By Alphanume Team
- May 30, 2026
What Is an At-the-Market (ATM) Offering?
By Alphanume Team
- May 29, 2026
Where to Find a List of De-SPAC Stocks
By Alphanume Team
- May 29, 2026
Contango vs Backwardation
By Alphanume Team
- May 29, 2026
Cost of Carry, Explained
By Alphanume Team
- May 29, 2026
Futures Fair Value, Explained (With a Calculator)
By Alphanume Team
- May 29, 2026
How Interest Rates Affect Bond Prices
By Alphanume Team
- May 29, 2026
What Is a Registered Direct Offering?
By Alphanume Team
- May 28, 2026
How to Get Historical De-SPAC Merger Completion Data via API
By Alphanume Team
- May 28, 2026
What Is Roll Yield?
By Alphanume Team
- May 28, 2026
Spot-Futures Parity
By Alphanume Team
- May 28, 2026
How to Price an Index Future
By Alphanume Team
- May 28, 2026
What Is the Basis in Futures?
By Alphanume Team
- May 28, 2026
What Is a PIPE Deal?
By Alphanume Team
- May 27, 2026
Where to Find Corporate Default and Distress Event Data
By Alphanume Team
- May 27, 2026
Initial vs Maintenance Margin in Futures
By Alphanume Team
- May 27, 2026
What Is Mark-to-Market in Futures?
By Alphanume Team
- May 27, 2026
How Dividends Affect Index Futures Fair Value
By Alphanume Team
- May 27, 2026
What Is a Bought Deal in Equity Offerings?
By Alphanume Team
- May 26, 2026
How to Get a History of Public Company Defaults via API
By Alphanume Team
- May 26, 2026
How to Find Equity Offering Announcements in SEC Filings
By Alphanume Team
- May 25, 2026
Where to Find Dividend Capture and Ex-Dividend Recovery Data
By Alphanume Team
- May 25, 2026
How to Detect Toxic and Death-Spiral Financing
By Alphanume Team
- May 24, 2026
How to Get an Upcoming Ex-Dividend Calendar via API
By Alphanume Team
- May 24, 2026
What Is an Equity Line of Credit (ELOC)?
By Alphanume Team
- May 23, 2026
Where to Find a Historical List of Optionable Stocks
By Alphanume Team
- May 23, 2026
How to Track Shelf Registration Takedowns
By Alphanume Team
- May 22, 2026
How to Get a Point-in-Time Universe of Stocks with Weekly Options
By Alphanume Team
- May 22, 2026
How to Find Dilution Events Programmatically
By Alphanume Team
- May 21, 2026
Where to Find Sector and Industry Classification Data for Stocks
By Alphanume Team
- May 21, 2026
Do Stock Offerings Make the Price Go Down?
By Alphanume Team
- May 20, 2026
How to Map Tickers to Sectors and Industries via API
By Alphanume Team
- May 20, 2026
What Is Post-Offering Drift?
By Alphanume Team
- May 19, 2026
Where to Find Historical Market Cap Data for Stocks
By Alphanume Team
- May 19, 2026
How to Build a Stock Dilution Screener
By Alphanume Team
- May 18, 2026
How to Get Point-in-Time Shares Outstanding and Market Cap via API
By Alphanume Team
- May 18, 2026
What Is Warrant Overhang and Why It Matters
By Alphanume Team
- May 17, 2026
Where to Find Daily Wikipedia Page View Data for Stocks
By Alphanume Team
- May 17, 2026
What Is a De-SPAC and Why Do They Underperform?
By Alphanume Team
- May 16, 2026
How to Use Wikipedia Attention Data as a Trading Signal
By Alphanume Team
- May 16, 2026
What Is a SPAC Lock-Up Expiration?
By Alphanume Team
- May 15, 2026
Where to Find SEC Filing Frequency Data by Company
By Alphanume Team
- May 15, 2026
How to Find De-SPAC Closing Dates
By Alphanume Team
- May 14, 2026
How to Track Spikes in a Company's SEC Filing Activity via API
By Alphanume Team
- May 14, 2026
What Is a PIPE in a SPAC Deal?
By Alphanume Team
- May 13, 2026
How to Build a Lock-Up Expiration Calendar
By Alphanume Team
- May 12, 2026
What Is Float Rotation After a De-SPAC?
By Alphanume Team
- May 11, 2026
How to Track Lock-Up Expirations From S-1 Filings
By Alphanume Team
- May 10, 2026
What Is a Hard-to-Borrow Stock?
By Alphanume Team
- May 9, 2026
How Are Stock Borrow Fees Calculated?
By Alphanume Team
- May 8, 2026
What Is a Short Squeeze and How Do You Spot One?
By Alphanume Team
- May 7, 2026
What Is Buy-In Risk for Short Sellers?
By Alphanume Team
- May 6, 2026
General Collateral vs Hard-to-Borrow Explained
By Alphanume Team
- May 5, 2026
How Do Short Proceeds and Margin Work?
By Alphanume Team
- May 4, 2026
Who Pays the Dividend on a Shorted Stock?
By Alphanume Team
- May 3, 2026
What Is Days-to-Cover (Short Interest Ratio)?
By Alphanume Team
- May 2, 2026
How to Find Short Squeeze Candidates With Data
By Alphanume Team
- May 1, 2026
What Is a Locate in Short Selling?
By Alphanume Team
- April 30, 2026
What Is Survivorship Bias in Backtesting?
By Alphanume Team
- April 29, 2026
What Is Look-Ahead Bias and How to Avoid It
By Alphanume Team
- April 28, 2026
What Is Point-in-Time Data?
By Alphanume Team
- April 27, 2026
How to Compute Abnormal Returns
By Alphanume Team
- April 26, 2026
What Is Cumulative Abnormal Return (CAR)?
By Alphanume Team
- April 25, 2026
How to Design an Event Study
By Alphanume Team
- April 24, 2026
What Is Delisting Bias?
By Alphanume Team
- April 23, 2026
How to Backtest a Short-Selling Strategy
By Alphanume Team
- April 22, 2026
How to Avoid Look-Ahead Bias in Universe Construction
By Alphanume Team
- April 21, 2026
What Is Borrow-Cost-Adjusted Return?
By Alphanume Team
- April 20, 2026
How to Handle Corporate Actions in Backtests
By Alphanume Team
- April 19, 2026
What Is Point-in-Time Market Cap and Why It Matters
By Alphanume Team
- April 19, 2026Featured
Alphanume Partner Program
By Alphanume Team
- April 18, 2026
How to Get a List of Stocks With Weekly Options
By Alphanume Team
- April 17, 2026
What Are 0-DTE Options and Which Indices Have Them?
By Alphanume Team
- April 16, 2026
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How the Weekly Options Universe Expanded Over Time
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How to Get Historical S&P 500 Constituents
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Why Events Move Markets
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The Case for the Short Side: Who Is Forced to Sell
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How to Find Stocks to Short Sell Using Data
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Short Selling De-SPACs: The Complete Data-Driven Approach
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Structural Underperformers: A Short-Seller's Taxonomy
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Scheduled vs Unscheduled Events: Why Disclosure Matters
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The Five-Beat Framework for Event-Driven Shorts
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Equity Offerings as a Systematic Short Signal
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The Signaling Theory of Equity Issuance (Myers-Majluf)
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Repeat Issuers: The Strongest Dilution Filter
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Green Shoe and Over-Allotment Mechanics
By Alphanume Team
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Failure Modes of the Dilution Short
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ATM Programs Explained for Short Sellers
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How to Read ATM Usage Disclosures
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- March 26, 2026
Why ATMs Differ From Discrete Offerings
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ATM Program Evidence: What the Data Shows
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ATM Short Failure Modes
By Alphanume Team
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De-SPAC Float Dynamics, Explained
By Alphanume Team
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Why De-SPACs Underperform: The Evidence
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The De-SPAC Systematic Short Framework
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De-SPAC Redemptions and Free Float
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De-SPAC Short Failure Modes (and Squeezes)
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Lock-Up Expirations as a Supply Event
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Quantifying Lock-Up Overhang
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Lock-Up Expiration Evidence
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Best Polygon.io (Massive) Alternatives for Quantitative Trading Research
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Databento Alternatives: Market Data APIs for Quant Researchers
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Best Options Data Providers for Systematic Trading Research
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Alpha Vantage Alternatives for Serious Quantitative Research
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Bloomberg Terminal Alternatives for Independent Quant Traders
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ORATS Alternatives: Options Analytics and Volatility Data Providers
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FinancialModelingPrep Alternatives for Quantitative Finance Research
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Best Market Data Sources for Systematic Short Selling Research
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Point-in-Time Market Data: Why It Matters and Where to Get It
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Best Volatility Data Providers for Options and Derivatives Research
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FactSet Alternatives for Independent Traders and Small Quant Teams
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The Lock-Up Expiration Framework
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Lock-Up Short Failure Modes
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Toxic Financing: Structural Red Flags
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Floor Prices, Warrants, and Conversion Mechanics
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Convertible Short Failure Modes
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Combining Event Signals Into One Book
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Handling Overlapping Signals on One Name
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Position Sizing and Concentration Limits for Shorts
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Rebalancing Cadence for an Event-Driven Short Book
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Managing the Negative-Skew P&L Path
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When to Size Down or Stand Aside (Squeezes)
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Tracking Sleeve Ownership Across Event Types
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Capital Allocation Across Event Types
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Correlation Between Short Sleeves
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Aggregate Borrow-Cost Budgeting
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Abnormal Return: Definition and How to Compute
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Beneficial Ownership and the 10% Threshold (Form 4)
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CAR (Cumulative Abnormal Return): Definition
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ELOC (Equity Line of Credit): Definition
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A Study Guide to Systematic Event-Driven Trading
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Which Stocks Have Options? (Complete Guide + Data Source)
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Avoiding Survivorship Bias in Options Backtests
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Polygon.io (Massive) vs Databento: What’s the Difference?
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Where to Find Historical Market Cap Data (And Why It’s Hard)
By Alphanume Team