Strap Strategy

Volatility Strategies Intermediate Singapore STI DBS OCBC UOB SINGTEL

Expecting Big Move - More Likely Up Than Down

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Quick Reference

Strategy Type Long Volatility with Bullish Bias
Market Outlook Expecting Big Move - More Likely Up Than Down
Risk Profile Defined Risk - Maximum Loss is Premium Paid
Reward Profile Unlimited Profit Potential - Greater on Upside
Time Horizon Event-Driven or 30-60 Days
Iv Environment Low IV Preferred for Entry (Cheaper Options)
Breakeven Two Breakevens - Asymmetric Due to 2:1 Call Ratio

Payoff Profile

A strap has a V-shaped payoff like a straddle, but the V is asymmetric - steeper on the upside because you hold 2 calls vs 1 put. Maximum loss occurs at the strike price where all options expire worthless. • Unlimited as stock rises (2 calls - twice the rate) • Unlimited as stock falls (1 put) • Total premium paid (at strike price) • Strike + (Total Premium / 2) • Strike - Total Premium

Singapore Market Details

Primary Instruments STI Options, DBS, OCBC, UOB - liquid ATM strikes
Mas Compliance MAS regulated; No margin required (all long options)
Contract Size 1,000 shares for equities; S$5 per point for STI
Trading Hours 9:00 AM - 5:00 PM SGT
Strike Intervals S$0.50 for equities; 10-25 points for STI
Expiration Schedule Monthly options - 2nd last business day of month
Settlement T+1 for derivatives
Tax Treatment No capital gains tax for individuals in Singapore
Liquidity Note ATM options typically most liquid; Need 3 contracts minimum

Frequently Asked Questions

Why buy a strap instead of just buying calls?

A strap profits from either direction, just more from upside. If you buy only calls and the stock falls, you lose everything. With a strap, a big downward move still profits (from the put). It's for when you expect volatility but have a bullish lean.

How much does a strap cost?

A strap costs the premium of 2 calls + 1 put. For ATM options, this might be roughly 3-4% of the stock price total. For DBS at S$33 with 30-day options, expect to pay around S$1.50-2.00 (S$1,500-2,000 per set).

What happens if the stock doesn't move?

If the stock stays at the strike price, all 3 options expire worthless and you lose the entire premium. This is why straps need a catalyst - you need the stock to move to profit. Time decay is your enemy.

Can I make money if the stock goes down?

Yes! If the stock falls below the lower breakeven (strike - total premium), you profit from the put. It's just that you profit less than you would from an equal upside move. A S$3 fall gives S$3 profit; a S$3 rise gives S$6 profit.

What's the difference between a strap and a straddle?

A straddle is 1 call + 1 put (neutral bias). A strap is 2 calls + 1 put (bullish bias). Both profit from big moves, but the strap profits twice as much on upside moves. Choose strap when you think up is more likely.

How do I choose between a strap and long calls?

If you're very confident the stock will rise, long calls are cheaper. If you think it will rise but want protection if wrong, use a strap. The put in a strap protects you if the stock falls instead of rising.

When should I close a strap after earnings?

Close immediately - within the first hour of trading after the announcement. IV typically crushes 30-50% after earnings. Even if the stock moved in your favor, the IV crush can erode profits quickly if you wait.

Can I adjust a strap if the stock moves?

Yes. If the stock rises significantly, you can close one call to take partial profits and reduce risk. If the stock falls, you can close the calls to cut losses and ride the put. Straps are flexible for adjustment.

Why does the upper breakeven require less movement?

You have 2 calls. Each call only needs to cover half the total premium for the position to break even. So upper BE = Strike + (Premium/2). The 2 calls work together, halving the required move on the upside.

Should I use ATM or OTM strikes for a strap?

ATM provides maximum gamma (sensitivity to movement) but costs more. OTM reduces cost but needs a bigger move. For most traders, ATM or 1-strike OTM is optimal. Very OTM is only for expecting massive moves.

How do I gamma scalp a strap position?

Start with delta-neutral by selling stock to offset the +50 delta. As stock moves and delta changes, rebalance by buying/selling stock. Each rebalance locks in gamma profits. Be aware of transaction costs, especially Singapore's stamp duty on purchases.

How does put skew impact strap strategy?

Steep put skew means puts are relatively expensive compared to calls. Since you're buying 2 calls and only 1 put, this actually benefits straps - your call cost is relatively lower. Steep skew makes straps more attractive than strips.

What ratio variations exist for straps?

Standard is 2:1 (2 calls:1 put). Aggressive is 3:1 or 4:1 for stronger bullish bias. Mild is 3:2 for slight bias. Higher ratios increase directional exposure and theta decay. Match ratio to conviction level.

How do I use a strap for breakout trading?

When a stock is consolidating near resistance, a strap can capture a breakout. If it breaks up, 2 calls provide leveraged profit. If it breaks down, the put provides protection. Entry timing is when consolidation is mature.

When is term structure important for strap timing?

In backwardation (front month IV > back month), front month options are expensive - the market is pricing in near-term event risk. Consider whether the premium is justified. In contango, front month is relatively cheaper but with less time.

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