OI Buildup Matrix
The 2x2 reading of price direction against open-interest direction — long buildup, short buildup, short covering, long unwinding.
Price up with OI up is a long buildup — fresh, confident buying. Price down with OI up is a short buildup — fresh, confident selling. Price up with OI down is short covering — shorts closing out, not new conviction. Price down with OI down is long unwinding — longs closing out, not new selling pressure.
The distinction matters because price direction alone can't tell buildup from unwind — a rally on short covering tends to fade once the covering is done, while a rally on genuine long buildup has fresh capital behind it. DeltaK's COA Matrix runs this same logic per-strike, in real time, across two OI generations rather than one end-of-day snapshot.
Example: NIFTY rallying 100 points while call OI at the strike just above spot rises sharply reads as long buildup — fresh conviction behind the move. The same 100-point rally with call OI at that strike falling instead reads as short covering — shorts running for the exit, a rally that often stalls the moment the covering is done.
Long Buildup
Fresh, confident buying — new longs entering, not shorts closing out.
Short Buildup
Fresh, confident selling — new shorts entering, conviction behind the move down.
Short Covering
Shorts closing out into strength — not new buying conviction, and often fades once covering is done.
Long Unwinding
Longs closing out into weakness — not new selling pressure, just exposure coming off.
Related terms
See it read live, not just diagrammed
Quantum Horizon reads Aegis/Zenith wall migration and RRG rotation live across NIFTY, BANKNIFTY, FINNIFTY and MIDCPNIFTY — sign in and watch it work in Paper mode.