Quantum-Si (QSI) Options Chain

NASDAQ: QSIIndustrialsIndustrial Machinery/ComponentsUSD

1.53+0.31 (+25.41%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $1.53
Put/call ratio (OI): 0.00
Put/call ratio (volume): 0.01
ATM implied volatility: 175.0%
Expected move: ±$0.8864
Open interest (C / P): 8.54K / 14

QSI options summary

The QSI options chain for the November 20, 2026 expiration lists 6 call and 4 put contracts, with 40 days until expiration. Open interest stands at 8,544 calls and 14 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.50 strike is 175.0%, which implies the market expects a move of about ±$0.8864 (57.9%) in Quantum-Si stock by expiration.

The most open interest sits at the $1.50 call (4.70K contracts) and the $0.50 put (6 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

QSI options chain · November 20, 2026

QSI calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
25	3	328.1%	1.10	0.80	1.40	0.50	0.00	0.05	0.03	240.6%	5	6
1,073	2	193.8%	0.68	0.40	0.90	1.00	0.05	0.15	0.07	178.1%	2	4
4,698	508	167.2%	0.40	0.30	0.40	1.50	0.00	0.70	0.27	182.8%	2	3
QSI $1.53
2,659	370	130.5%	0.25	0.00	0.25	2.00	0.35	1.00	0.87	171.1%	—	1
88	37	143.8%	0.18	0.00	0.15	2.50	—	—	—	—	—	—
1	—	329.7%	0.05	0.00	0.40	5.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the QSI put/call ratio?

For the November 20, 2026 expiration, the QSI put/call ratio based on open interest is 0.00 (14 puts vs 8,544 calls), and 0.01 based on today's volume. A ratio above 1 means more puts than calls.

What is QSI's implied volatility?

At-the-money implied volatility for QSI options expiring November 20, 2026 is about 175.0%, an annualized estimate of how much the market expects Quantum-Si stock to move.

How many QSI option expiration dates are there?

QSI has 8 listed expiration dates, from Oct 16, 2026 to Apr 16, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.