OptionSlam
Specialized earnings options analytics platform providing historical price reaction data, implied move calculations, and volatility ratings for earnings-event traders.
Quick Facts
- Starting Price
- Free
- Free Tier
- Yes
- Founded
- 2006
- Company
- Optionslam.com LLC
OptionSlam Overview
OptionSlam is a niche but deeply respected data and analytics platform built exclusively around earnings-event options trading. Since 2006, it has provided traders with the historical earnings reaction data, implied volatility metrics, and screening tools needed to evaluate straddle, strangle, and directional trades around earnings announcements.
The platform's flagship metrics include the Earnings Volatility Rating (EVR), a proprietary score measuring how sensitive a stock has historically been to its own earnings surprises, and up to three Implied Move (IM) calculations derived from real-time market data. These tools help traders identify stocks with predictable or explosive earnings reactions and size positions accordingly.
OptionSlam's INSIDER membership unlocks the full suite of tools, including backtesting capabilities for earnings strategies, email alerts for upcoming earnings events, Excel export for custom analysis, and access to weekly implied volatility reports and trending stocks data. The free tier provides limited access to the earnings calendar and basic historical data, making it useful for casual reference but insufficient for active traders.
The platform is not a broker or charting tool — it is a pure research and data resource. It is widely used by volatility traders, premium sellers, and straddle traders who want a dedicated edge around earnings events. Communities like SteadyOptions openly endorse it as a core part of their earnings research workflow.
OptionSlam Pricing
Free
- ✓ Basic earnings calendar
- ✓ Limited historical price reaction data
- ✓ Limited tool access
- ✓ No registration required for basic browsing
Insider
$16.58/mo billed yearly
- ✓ Full earnings history & price movement data
- ✓ Earnings Volatility Rating (EVR)
- ✓ Up to 3 Implied Move (IM) calculations
- ✓ ATM straddle/strangle pricing model
- ✓ Upcoming earnings screener
- ✓ Straddle and strangle tracking history
- ✓ Weekly implied volatility reports
- ✓ Trending stocks reports
- ✓ Backtesting tools
- ✓ Email alerts
- ✓ Excel data export
- ✓ Webinar access
Features
Pros & Cons
Pros
- + Unmatched depth of earnings-specific options data going back years
- + Proprietary EVR metric helps identify high-probability earnings play candidates
- + Reasonable annual price for the niche it serves
- + Trusted and endorsed by well-known options trading communities
- + Screener filters for both directional and non-directional earnings strategies
Cons
- - Extremely narrow focus — not useful outside of earnings-event trading
- - No monthly billing option; annual commitment required for paid tier
- - Outdated interface compared to modern analytics platforms
- - No mobile app or broker integration
Rating Breakdown
Overall Rating
Key Takeaways
- ✓ Unmatched depth of earnings-specific options data going back years
- ✓ Proprietary EVR metric helps identify high-probability earnings play candidates
- ✓ Reasonable annual price for the niche it serves
- ✓ Trusted and endorsed by well-known options trading communities
- ✓ Screener filters for both directional and non-directional earnings strategies
- ★ Rated 4.1/5 — best for earnings straddle and strangle traders, implied volatility traders, options premium sellers targeting earnings events, systematic earnings strategy researchers
- $ Free tier available
TL;DR
OptionSlam is a options platforms tool rated 4.1/5, best suited for earnings straddle and strangle traders and implied volatility traders and options premium sellers targeting earnings events and systematic earnings strategy researchers. It offers a free plan, with paid plans starting at $N/A/month. Unmatched depth of earnings-specific options data going back years and proprietary evr metric helps identify high-probability earnings play candidates.
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