Market Flow

The market tide is sampled about every 5 minutes during US regular trading hours from Valence's cached SPY option chain, which itself refreshes every 20 minutes. It resets each trading session and is not an exchange order-flow feed.

Overview for all option chains of S&P500. As of 2026-08-19, the total volume is 3,381,705 contracts. The volume put-call ratio is 1.56. Current net call premium flow is 613.36M and net put premium flow is 681.97M, indicating a neutral sentiment in the market.

Net Volume
-743.84K
Net Call Prem
613.36M
Net Put Prem
681.97M
Most Active Sector

S&P 500 Flow

2026-08-18 session

Fear & Greed

Last Update: Aug 19, 2026

Sector Flow

Open Interest (OI)

Today's Open Interest
15,685
Put-Call Ratio
0.00
Put Open Interest
61
Call Open Interest
15,624

Volume

Today's Volume
3,381,705
Put-Call Ratio
1.56
Put Volume
2,062,773
Call Volume
1,318,932