Accuracy Matters in Options Flow
Why direct feeds outperform aggregators.
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Accuracy in options flow comes down to data ingestion. 'Accuracy' means seeing the trade exactly as it was printed on the exchange, with the correct tags (Buy/Sell, Opening/Closing). Unusual Whales connects directly to the SIP (Securities Information Processor) and exchange feeds to ensure 100% data fidelity, whereas cheaper alternatives often use 'sampled' or delayed feeds that miss split-second block trades.
Why Traders Switch From Competitors
The Other Guys
- ✕Limited Historical Data
- ✕Delayed Dark Pool Prints
- ✕No Political Tracking
- ✕Higher Prices per Alert
Unusual Whales
- ✓Full Historical Flow Database
- ✓Real-Time Dark Pool & Equity Block Data
- ✓Congressional Trading Tracker
- ✓Lowest Cost for Institutional Grade Data
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Frequently Asked Questions
Does anyone have 100% accuracy on 'Buy vs Sell'?
No tool has 100% perfect 'Buy vs Sell' (Aggressor) tagging because exchanges don't explicitly report it—it must be inferred from Bid/Ask. However, Unusual Whales uses advanced algorithms involving NBBO snapshoting to achieve industry-leading accuracy in this inference.
Why do some platforms miss trades?
platforms using cheaper data feeds (like IEX-only or sampled feeds) literally do not receive every trade packet. We pay for the full firehose of market data.
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