SPY (SPY) Open Interest
$764.62+0.78% (24h)
Total SPY futures open interest with a 30-day trend and per-exchange split.
$57.51M
Open Interest
USD notional, all venues
+4.77%
30-Day Change
vs $54.89M
12
Exchanges
with live SPY futures OI
Largest Venue
35.7% share
SPY Open Interest — Last 30 Days
Hourly total USD notional across all tracked exchanges
Rising open interest with rising price signals new money entering SPY longs; falling OI signals positions being closed.
SPY Open Interest by Exchange
Latest hourly snapshot · USD notional and market share