OSBC Bear Put Spread Strategy
OSBC (Old Second Bancorp, Inc.), in the Financial Services sector, (Banks - Regional industry), listed on NASDAQ.
Old Second Bancorp, Inc. operates as the bank holding company for Old Second National Bank that provides community banking services. It provides demand, NOW, money market, savings, time deposit, individual retirement, and checking accounts, as well as certificate of deposit accounts. The company also offers commercial loans; lease financing receivables; commercial real estate loans; construction loans; residential real estate loans, such as residential first mortgage and second mortgage loans; home equity line of credit; consumer loans, including motor vehicle, home improvement, and signature loans; installment and agricultural loans; residential mortgages; and overdraft checking. Further, it provides safe deposit services; trust and wealth management services; and money orders, cashier's checks, foreign currency, direct deposits, discount brokerage, debit and credit cards, and other services, as well as acquires the U.S. treasury notes and bonds. In addition, the company offers online and mobile banking; corporate cash management products, including remote and mobile deposits capture, investment sweep accounts, zero balance accounts, automated tax payments, automatic teller machines access, telephone banking, lockbox accounts, automated clearing house transactions, account reconciliation, controlled disbursement, detail and general information reporting, foreign and domestic wire transfers, and vault services for currency and coin; and investment, agency, and custodial services for individual, corporate, and not-for-profit clients. It operates through 63 banking centers in Cook, DeKalb, DuPage, Kane, Kendall, LaSalle, and Will counties in Illinois.
OSBC (Old Second Bancorp, Inc.) trades in the Financial Services sector, specifically Banks - Regional, with a market capitalization of approximately $1.06B, a trailing P/E of 12.64, a beta of 0.71 versus the broader market, a 52-week range of 16.21-22.43, average daily share volume of 405K, a public-listing history dating back to 1993, approximately 877 full-time employees. These structural characteristics shape how OSBC stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.71 places OSBC roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. OSBC pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a bear put spread on OSBC?
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.
Current OSBC snapshot
As of May 15, 2026, spot at $20.42, ATM IV 16.90%, IV rank 0.31%, expected move 4.85%. The bear put spread on OSBC below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 34-day expiry.
Why this bear put spread structure on OSBC specifically: OSBC IV at 16.90% is on the cheap side of its 1-year range, which favors premium-buying structures like a OSBC bear put spread, with a market-implied 1-standard-deviation move of approximately 4.85% (roughly $0.99 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated OSBC expiries trade a higher absolute premium for lower per-day decay. Position sizing on OSBC should anchor to the underlying notional of $20.42 per share and to the trader's directional view on OSBC stock.
OSBC bear put spread setup
The OSBC 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 OSBC near $20.42, the first option leg uses a $20.42 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed OSBC chain at a 34-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 OSBC shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Put | $20.42 | N/A |
| Sell 1 | Put | $19.40 | N/A |
OSBC 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.
OSBC bear put spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bear put spread on OSBC. 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 OSBC
Bear put spreads on OSBC reduce the cost of a bearish OSBC stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
OSBC thesis for this bear put spread
The market-implied 1-standard-deviation range for OSBC extends from approximately $19.43 on the downside to $21.41 on the upside. A OSBC bear put spread caps both the risk and the reward of a bearish position; relative to an outright long put on OSBC, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current OSBC IV rank near 0.31% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on OSBC at 16.90%. As a Financial Services name, OSBC options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to OSBC-specific events.
OSBC 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. OSBC positions also carry Financial Services sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move OSBC alongside the broader basket even when OSBC-specific fundamentals are unchanged. Long-premium structures like a bear put spread on OSBC 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 OSBC chain quotes before placing a trade.
Frequently asked questions
- What is a bear put spread on OSBC?
- A bear put spread on OSBC is the bear put spread strategy applied to OSBC (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 OSBC stock trading near $20.42, the strikes shown on this page are snapped to the nearest listed OSBC chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are OSBC 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 OSBC bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 16.90%), 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 OSBC bear put spread?
- The breakeven for the OSBC bear put spread priced on this page is no defined breakeven on the modeled curve at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current OSBC market-implied 1-standard-deviation expected move is approximately 4.85%; 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 OSBC?
- Bear put spreads on OSBC reduce the cost of a bearish OSBC 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 OSBC implied volatility affect this bear put spread?
- OSBC ATM IV is at 16.90% with IV rank near 0.31%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.