Strike Desk
Open interest walls, aggressor flow and dealer gamma by strike in one panel. Big walls above and below spot act as magnets or barriers into expiry.
OISTRIKEOISCrypto options (BTC, ETH, SOL, HYPE) and US options, including SPX, SPY, QQQ and single stocks.
Typing it
OISTRIKESymbolExpiryview=>OISTRIKESPX view=book
Opens the SPX strike desk on the day-over-day open interest change.
What you see
- OI views. Calls and puts by strike, with spot as a dashed white line and max pain in amber.
- Stats strip. Call and put OI, put/call ratio and the biggest walls.
What to look for
- Large walls above and below spot. They act as magnets or barriers into expiry.
- On FLOW, sort by net to find the strikes taking the most aggressive premium.
- Heavy flow with no change in OI usually means short-term trading, not new positions.
Views
- split / net / stacked
- Open interest by strike, drawn three ways.
- flow
- Aggressor bought vs sold premium by strike, as a table or chart.
- pos
- Flow-signed dealer gamma by strike.
- book
- US options only. Change in open interest since the prior session, with GEX and DEX.
Good to know
- Crypto flow and pos views cover BTC and ETH.
Also on the chart
The same data can sit on the price chart. Press / on the chart and search for:
Pairs well with
Questions
Is OISTRIKE the same as open interest by strike?
That is its default view. It also holds flow, dealer positioning and the day-over-day book change, so you can switch views without opening new panels.
Why does BOOK not work on BTC?
BOOK is built from daily OCC open interest snapshots, which only exist for US options. On crypto it falls back to FLOW.