QSI Bear Put Spread Strategy
QSI (Quantum-Si incorporated), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
Quantum-Si incorporated operates within the life sciences sector, focusing on the creation of an advanced platform for individual molecule detection. This innovative technology is designed to streamline sample preparation and subsequent sequencing processes. The company offers a unique, proprietary single molecule detection system that draws on advancements from the semiconductor industry. This system is specifically applied to the field of proteomics, paving the way for next-generation protein sequencing. Established in 2013, Quantum-Si's headquarters are located in Guilford, Connecticut.
QSI (Quantum-Si incorporated) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $165.7M, a beta of 3.25 versus the broader market, a 52-week range of 0.69-3.1, average daily share volume of 5.2M, a public-listing history dating back to 2020, approximately 145 full-time employees. These structural characteristics shape how QSI stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 3.25 indicates QSI has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position.
What is a bear put spread on QSI?
A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width.
QSI snapshot
As of August 14, 2026, spot at $0.75, ATM IV 203.47%, IV rank 55.77%, expected move 58.33%. The bear put spread on QSI below is built from the end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 28-day expiry.
Why this bear put spread structure on QSI specifically: QSI IV at 203.47% is mid-range versus its 1-year history, so strategy selection should anchor more to the directional thesis than to the IV regime, with a market-implied 1-standard-deviation move of approximately 58.33% (roughly $0.44 on the underlying). The 28-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated QSI expiries trade a higher absolute premium for lower per-day decay. Position sizing on QSI should anchor to the underlying notional of $0.75 per share and to the trader's directional view on QSI stock.
QSI bear put spread setup
The QSI bear put spread below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With QSI at $0.75 on that close, the first option leg uses a $0.75 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed QSI chain at a 28-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 QSI shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Put | $0.75 | N/A |
| Sell 1 | Put | $0.71 | N/A |
QSI bear put spread risk and reward
- Net Premium / Debit
- N/A
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- Unbounded
- Breakeven(s)
- None on modeled curve
- Risk / Reward Ratio
- N/A
Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit.
QSI bear put spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bear put spread on QSI. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.
When traders use bear put spread on QSI
Bear put spreads on QSI reduce the cost of a bearish QSI stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
QSI thesis for this bear put spread
The market-implied 1-standard-deviation range for QSI extends from approximately $0.31 on the downside to $1.19 on the upside. A QSI bear put spread caps both the risk and the reward of a bearish position; relative to an outright long put on QSI, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current QSI IV rank near 55.77% is mid-range against its 1-year distribution, so the IV signal is neutral; the bear put spread thesis on QSI should anchor more to the directional view and the expected-move geometry. As a Healthcare name, QSI options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to QSI-specific events.
QSI bear put spread positions are structurally moderately bearish; the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. QSI positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move QSI alongside the broader basket even when QSI-specific fundamentals are unchanged. Long-premium structures like a bear put spread on QSI are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current QSI chain quotes before placing a trade.
Frequently asked questions
- What is a bear put spread on QSI?
- A bear put spread on QSI is the bear put spread strategy applied to QSI (stock). The strategy is structurally moderately bearish: A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width. With QSI stock at $0.75 on the most recent close, the strikes shown on this page are snapped to the nearest listed QSI chain strike and the premiums come straight from that session's bid/ask midpoint.
- How are QSI bear put spread max profit and max loss calculated?
- Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit. For the QSI bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 203.47%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a QSI bear put spread?
- The breakeven for the QSI bear put spread priced on this page is no defined breakeven on the modeled curve at expiration, derived from the end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The QSI market-implied 1-standard-deviation expected move in the same options snapshot is approximately 58.33%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a bear put spread on QSI?
- Bear put spreads on QSI reduce the cost of a bearish QSI stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
- How does current QSI implied volatility affect this bear put spread?
- QSI ATM IV is at 203.47% with IV rank near 55.77%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.