Lots of people sell put options for steady income — pocket a premium, watch it melt to zero, repeat. It feels like the easiest money on the market.
This is a quick simulation of what that actually feels like — and what happens on the rare day it doesn’t go to plan.
You’ve got a $5,000 account and a calm, boring stock. Go make some money.
No advice — just a simulation.
Cash ?
$5,000
Positions ?
$0
Net worth ?
$5,000
Sell your first put
You want income. Selling a put pays you cash today. Here's the stock and its option chain — pick a strike to sell. These puts expire in 5 days.
XYZ
a calm, boring stock · NYSE · USD
$100.00
▲ $0.40 (0.4%) today
1M
6M
1Y
↓ Tap a row, or hit “Select”, to choose which put to sell
Sell put @ strike
Premium / share
Worthless odds
How many contracts? (1 = 100 shares)
1
Done. Cash in your pocket. 🤑
That was easy. The premium landed in your account right now.
Sold
Strike
Stock price$100.00
Premium collected — yours today
XYZ
your stock · 5 days to expiration
$100.00
▲ holding steady
📋 Your positions
Position
Mark
Market value
Unrealized P&L: · value = mark × 100 × contracts
Time to expiration
Your confidence88%
The story you tell yourself
“The stock won’t drop that far. The odds are on my side. The house always wins, right?”
A few days later: it works. 📈
The stock drifts up to $103 and just sits there. Your short put is bleeding value — exactly what you want. You’re almost home.
XYZ
your stock · 1 day to expiration
$100.00
▲ +$0.00 (0.0%)
📋 Your positions
Position
Mark
Market value
Unrealized P&L:
Time to expiration
📲 Your broker, helpfully
“You’ve captured ~80% of max profit. Traders like you sell puts every week for steady income. Why stop at one?”
See? Free money. The pros overcomplicate this. Maybe size up next time…
Overnight: the gap.
A bad headline hits while you sleep. The stock gaps down hard — straight through your strike. Your put is in the money now, and you haven’t closed it. It’s a paper loss… for now.
XYZ
your stock · expiration tomorrow
$103.00
▼ $0.00 (0.0%)
Unrealized P&L on your “easy” trade
+$0
📋 Your positions — live
Position
Mark
Market value
Unrealized P&L:
Time to expiration
Your confidence88%
🧠 The voice in your head
“There’s still a day left. It always bounces back. Don’t lock in the loss — just hold and hope.”
It gaps again.
No bounce. The stock keeps falling and your short put sinks deeper with it — and you still hold it. Watch the damage.
XYZ
your stock · expiration day
$0.00
▼ $0.00 (0.0%)
P&L on your “easy” trade — falling
$0
📋 Trade closed
Position
Closed at
Cash impact
⚠ Margin call — forced liquidation
Your account value fell below the margin the broker requires to hold a short put this size. They closed it for you at the open — the worst possible moment — and the loss is yours to keep.
⚖️ Now you’re stuck
What just happened
You were short the tail
This is negative skew (short gamma): your upside was capped at the premium, your downside ran to the floor. You can win 9 times out of 10 and one gap erases all of it. The win-rate was never the point — the size of the rare loss is.
Notice the trap: the days-to-expiration bar filling up felt like safety (“almost free money”), and “hold and hope” only let the loss get bigger. Time and patience don’t save a position that’s short the tail — they just decide when the gap finds you.
The takeaway: sell insurance and you collect pennies — while you’re the one left holding the bag when the rare disaster hits. That’s capped upside and uncapped downside. The other side of the same trade has the opposite shape: a small, known cost and an open-ended payoff. Neither is “right” or “wrong” — but it’s worth knowing which shape you’re actually holding. This is a simulation, not financial advice.
Only tried one strike? The “safe” far-OTM one has the worst asymmetry of all — replay and pick a different one to really feel it.