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tomasz dobrowolski

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Volatility Risk Premium in 30 Lines of Python (And the 5 Mistakes That Wreck It)

Volatility Risk Premium in 30 Lines of Python (And the 5 Mistakes That Wreck It)

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6 min read
HTTP 429 or 403 from your options API? Here's what tier you actually need

HTTP 429 or 403 from your options API? Here's what tier you actually need

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5 min read
I Backtested 96 SPY Put Credit Spread Strategies - Here's the Bug Log

I Backtested 96 SPY Put Credit Spread Strategies - Here's the Bug Log

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6 min read
SPXW 0DTE: What Every Developer Building Options Tools Needs to Know

SPXW 0DTE: What Every Developer Building Options Tools Needs to Know

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5 min read
I Backtested My Own GEX Product Across 8 Years of SPY. Most of It Is Just VIX.

I Backtested My Own GEX Product Across 8 Years of SPY. Most of It Is Just VIX.

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8 min read
I Priced 18 Million SPY Put Spreads Across 8 Years. Every Bucket Was -EV. Every Year Made Money.

I Priced 18 Million SPY Put Spreads Across 8 Years. Every Bucket Was -EV. Every Year Made Money.

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6 min read
Free GEX Data — Gamma Exposure Levels for 6,000+ US Tickers (No Signup, No Credit Card)

Free GEX Data — Gamma Exposure Levels for 6,000+ US Tickers (No Signup, No Credit Card)

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3 min read
Replay any minute of SPY options back to 2018 - historical GEX, DEX, VEX, CHEX in one API

Replay any minute of SPY options back to 2018 - historical GEX, DEX, VEX, CHEX in one API

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3 min read
Backtesting Gamma-Exposure Strategies with Minute-Level Historical Data

Backtesting Gamma-Exposure Strategies with Minute-Level Historical Data

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6 min read
Look-Ahead Bias in Volatility Backtests — Why Most VRP Percentiles Silently Cheat (and How to Fix It)

Look-Ahead Bias in Volatility Backtests — Why Most VRP Percentiles Silently Cheat (and How to Fix It)

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6 min read
Historical Options Data API for Backtesting — Replay GEX, VRP & Dealer Positioning at Any Minute Since 2018

Historical Options Data API for Backtesting — Replay GEX, VRP & Dealer Positioning at Any Minute Since 2018

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6 min read
Max Pain in Options: The Math, the Mechanics, and How to Query It via API

Max Pain in Options: The Math, the Mechanics, and How to Query It via API

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3 min read
Volatility Surface API: How to Build, Visualize, and Trade the IV Surface with Code

Volatility Surface API: How to Build, Visualize, and Trade the IV Surface with Code

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5 min read
0DTE Options Scanner API — Screen Same-Day Contracts by Delta, OI, and Gamma Regime

0DTE Options Scanner API — Screen Same-Day Contracts by Delta, OI, and Gamma Regime

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4 min read
Screener Cookbook — GEX, VRP, and 0DTE Filters for the Live Options Screener

Screener Cookbook — GEX, VRP, and 0DTE Filters for the Live Options Screener

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4 min read
Live Options Screener API — Real-Time Filter, Rank, and Score Across 250 Symbols

Live Options Screener API — Real-Time Filter, Rank, and Score Across 250 Symbols

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5 min read
Call Wall, Put Wall & Gamma Flip: The Three GEX Levels That Predict Intraday Ranges

Call Wall, Put Wall & Gamma Flip: The Three GEX Levels That Predict Intraday Ranges

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3 min read
Call Wall, Put Wall & Gamma Flip Explained: The Three GEX Levels Every Options Trader Must Know

Call Wall, Put Wall & Gamma Flip Explained: The Three GEX Levels Every Options Trader Must Know

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6 min read
Quantifying Dealer Positioning with GEX, VEX, and CHEX — A Developer's Guide

Quantifying Dealer Positioning with GEX, VEX, and CHEX — A Developer's Guide

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5 min read
I Built a 5-Minute VRP Trading Scanner in Python — Here's the Code

I Built a 5-Minute VRP Trading Scanner in Python — Here's the Code

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5 min read
Build a GEX Dashboard with Python: Gamma Exposure Monitor in One API Call

Build a GEX Dashboard with Python: Gamma Exposure Monitor in One API Call

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7 min read
Build a VRP Dashboard with Python: Volatility Risk Premium Monitor in One API Call

Build a VRP Dashboard with Python: Volatility Risk Premium Monitor in One API Call

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6 min read
Build a 0DTE Options Dashboard with One API Call

Build a 0DTE Options Dashboard with One API Call

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7 min read
Volatility Risk Premium: The Practical Guide to Trading the Most Persistent Edge in Options

Volatility Risk Premium: The Practical Guide to Trading the Most Persistent Edge in Options

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19 min read
Options Analytics Comparison: FlashAlpha vs SpotGamma vs Unusual Whales — Which Fits Your Stack?

Options Analytics Comparison: FlashAlpha vs SpotGamma vs Unusual Whales — Which Fits Your Stack?

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12 min read
FlashAlpha Python SDK: Open-Source Tools for Options Analytics

FlashAlpha Python SDK: Open-Source Tools for Options Analytics

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7 min read
Stop Maintaining Your Own SVI Fitting Code — Advanced Volatility API for Quant Teams

Stop Maintaining Your Own SVI Fitting Code — Advanced Volatility API for Quant Teams

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5 min read
GEX Trading Guide: How to Read and Trade Gamma Exposure for SPY, TSLA, QQQ and More

GEX Trading Guide: How to Read and Trade Gamma Exposure for SPY, TSLA, QQQ and More

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6 min read
The Complete Guide to Options Volatility: From IV to VRP to Vol Surface

The Complete Guide to Options Volatility: From IV to VRP to Vol Surface

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7 min read
How to Read Volatility Term Structure: Contango, Backwardation & Event Pricing

How to Read Volatility Term Structure: Contango, Backwardation & Event Pricing

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6 min read
Guide to 0DTE Trading: 5 Strategies Powered by Real-Time Dealer Data

Guide to 0DTE Trading: 5 Strategies Powered by Real-Time Dealer Data

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10 min read
Options API Comparison 2025: FlashAlpha vs Tradier vs Polygon vs Intrinio

Options API Comparison 2025: FlashAlpha vs Tradier vs Polygon vs Intrinio

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5 min read
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