Cash Secured Put Screener: Find the Best CSP Setups Fast

You want to sell puts for income. Your watchlist has 30 tickers. Your broker shows one options chain at a time. By the time you've manually checked delta, premium yield, DTE, and open interest across even 10 tickers, the best setups have moved — or you've given up and picked something mediocre because you ran out of time.

That's not a you problem. That's a tooling problem. A proper cash secured put screener runs that comparison engine in seconds and hands you a ranked list. This guide shows you exactly how to use one.

Why Manual CSP Scanning Fails

Selling cash secured puts is a high-conviction strategy when applied correctly. The setup logic is simple: sell an OTM put on a stock you'd be happy to own, collect the premium, repeat. The execution problem is finding which stock, which strike, and which expiration gives you the best return for the risk you're taking.

When you scan manually, you're making several silent errors:

• Yield comparison without normalization — A $0.90 premium on a $45 stock is a different yield than $0.90 on a $12 stock. Without annualized yield calculated per trade, comparisons are meaningless.
• Ignoring open interest — Low open interest means wide bid-ask spreads and slippage that quietly erodes returns. Most chain views don't flag this visually.
• Time bias in scanning — You spend more time on tickers you already like, not tickers that rank highest. The best cash secured put finder is indifferent to sentiment — it ranks purely on the numbers.
• Missing the real yield calculation — Yield on a CSP is premium ÷ cash secured (the strike × 100 × number of contracts). Many traders calculate this wrong against current stock price instead of the capital at risk.

A put selling scanner eliminates all of this. It calculates yield correctly, normalizes by annualized return, flags open interest, and hands you a sorted list. You evaluate the top 3 candidates. Done.

What Makes a Good Cash Secured Put

Four variables define the quality of a CSP setup. Get all four right and you have a defensible trade. Miss one and the yield number is misleading.

1. Delta (0.15 – 0.35)

Delta on a put equals the rough probability the option expires in-the-money — which means assignment for a CSP seller. A 0.20 delta put has approximately an 80% chance of expiring worthless and you keeping the full premium.

Go below 0.15 delta and you're collecting pennies. The premium barely justifies the capital commitment and the bid-ask spread wipes out most of it. Go above 0.35 and you're taking on meaningful assignment risk — fine if you genuinely want the shares at that price, but not as a pure yield trade.

2. Days to Expiration (21 – 45 DTE)

Theta decay — the daily erosion of option time value — accelerates sharply in the 21–45 DTE window. This is the CSP seller's sweet spot: maximum decay rate relative to the premium received. Options with fewer than 21 days don't give you time to manage the position if the stock moves against you. Options with more than 60 days have too much time for unexpected events to unfold.

Set your cash secured put screener to this DTE range and you'll see consistently better risk-adjusted returns than traders chasing weekly expirations.

3. Premium Yield (1.5%+ per month)

This is the most important number and the most commonly miscalculated one. Yield on a CSP is: premium received ÷ cash secured. Cash secured = strike price × 100 shares.

If you sell a $45 strike put for $0.90 premium: yield = $90 ÷ $4,500 = 2.0% for the period. Annualized (×12 for 30-day hold) = 24% annualized. That's a trade worth executing. At 0.5% monthly, you're not being compensated adequately for the capital at risk.

4. Open Interest (100+ contracts)

Open interest is a liquidity proxy. Below 100 contracts at a given strike, you're trading in a thin market with spreads wide enough to eliminate most of your yield edge. The best cash secured puts screen for this automatically so you never accidentally enter a position where the mid-price you see isn't the price you'll get filled at.

How YieldMatrix Filters Work for CSPs

YieldMatrix runs a put selling scanner across 50+ tickers simultaneously and ranks results by annualized yield. The filter logic maps directly to the four variables above:

• Delta filter — Set max delta to 0.30. Every result you see carries at least a 70% probability of expiring worthless. Higher-delta results are excluded — they're available but de-ranked.
• DTE filter — Set max DTE to 45. Results only show contracts expiring within your theta-decay sweet spot. No need to manually skip weeklies or LEAPS.
• Yield floor — Set minimum monthly yield to 1.5%. The scanner calculates this correctly against the strike value, not the stock price, so you're seeing real yield on capital at risk.
• Sort by annualized yield — The highest-returning setups at acceptable delta and DTE appear first. The best cash secured put finder doesn't make you hunt — it puts the answer at the top.

The result: you open the scanner, configure once, and every scanning session starts with your best current CSP opportunity at row 1.

Real Tickers: CSP Rankings by Yield

Here's what a typical put selling scanner output looks like after running with the filter stack above. These are illustrative setups showing how the ranking works:

Ticker	Strike	DTE	Premium	Yield / mo	Delta	Open Int.
SOFI	$8.00	28	$0.62	2.8%	0.24	3,420
PLTR	$22.00	35	$0.94	2.3%	0.22	8,150
ASTS	$16.00	42	$0.88	2.0%	0.28	1,870
AMD	$105.00	31	$2.85	1.8%	0.20	12,300
MARA	$14.00	38	$0.70	1.6%	0.30	2,940

Without a cash secured put screener, you'd never rank these in one view. You might scan AMD first because it's a name you know — but SOFI is yielding 2.8% monthly at a lower delta with 3,400+ contracts of open interest. The scanner surfaces that in a second; manual scanning might never get there.

Common Mistakes When Selling Puts

Even traders who use a screener leave yield on the table with these habits:

• Selling puts on stocks you don't want to own — A CSP is a conditional buy order. If the stock drops through your strike and you get assigned, you own 100 shares at strike price. Only sell puts on stocks where that outcome is acceptable, not just tolerable.
• Ignoring IV rank — When implied volatility is elevated (high IV rank), premiums are inflated and the math on CSPs is more favorable. When IV is crushed, you're collecting less premium for the same risk. Use IV rank as a secondary filter; the best best cash secured puts opportunities cluster around elevated IV environments.
• Not accounting for the cost basis on assignment — If you're assigned, your true cost basis is strike price minus premium received. SOFI at an $8 strike with $0.62 premium = $7.38 effective cost. Know this number before entering — it tells you how far the stock needs to fall before you're actually at a loss.
• Letting losing positions expire in-the-money — A CSP going against you isn't a reason to panic, but it is a signal to manage. At 21 DTE with a position deeply ITM, rolling to the next expiration for a net credit is almost always better than sitting on a position headed for assignment you didn't plan for.
• Confusing premium per contract with yield — High absolute premium (selling AMD puts vs. SOFI puts) doesn't mean better yield. $2.85 on AMD at a $105 strike is 1.8% monthly. $0.62 on SOFI at an $8 strike is 2.8% monthly. The screener does this math for you — trust the yield column, not the dollar amount.

Try the Scanner

Manual scanning for cash secured put setups is a solved problem — you just need the right tool. YieldMatrix runs the put selling scanner across your full watchlist, calculates yield against cash secured capital, filters by delta and DTE, and sorts by annualized return. The best setup is at the top. Free to try.