Long Put Explained: Strategy, Example & Shorting Stocks Compared (2025 Guide)

If you’ve watched the ASX rollercoaster lately, you’ll know that markets aren’t always a one-way ride up. Savvy investors look for ways to profit from falling share prices — and two of the most common strategies are buying a long put option and short selling stock. But while both approaches bet on a price drop, they work very differently and come with unique risks and rewards. Here’s what every Australian investor should know in 2025.

What Is a Long Put? The Basics for Aussie Investors

A long put is an options trading strategy where you buy a put option contract, giving you the right (but not the obligation) to sell a specific stock at a set price (the strike price) before a certain date (the expiry). If the stock price falls below the strike price, your put increases in value — letting you either sell the stock for more than it’s now worth, or sell the put itself for a profit.

• Cost: You pay a premium upfront for the put option.

• Maximum loss: Limited to the premium paid, even if the share price rockets upward.

• Maximum gain: Theoretically, the strike price minus the premium (if the stock goes to zero).

ASX-listed put options are available on many large Australian shares, including the big banks and resource giants. In 2025, options trading remains regulated by ASIC, with all retail investors required to complete a suitability test before being approved by their broker to trade options.

Long Put Example: How It Works in Practice

Suppose you’re bearish on BHP Group (ASX: BHP) in early 2025, fearing China’s commodity demand may falter. BHP shares are trading at $48. You buy a put option with a $48 strike price, expiring in three months, paying a $1.50 premium per share.

• If BHP falls to $43 before expiry, your put is worth at least $5 ($48 - $43). Subtract your $1.50 premium, and your profit is $3.50 per share.

• If BHP stays above $48, the put expires worthless, and your loss is limited to the $1.50 premium.

Unlike short selling, you don’t have to borrow shares or worry about margin calls. You know your maximum risk from the outset.

Long Put vs. Shorting Stock: Key Differences in 2025

Both strategies profit from falling prices, but there are crucial differences — especially with current ASX and ASIC regulations:

• Risk Profile: Long puts have capped risk (the premium), while short selling carries theoretically unlimited risk if the stock price surges.

• Upfront Capital: Long puts require only the premium. Shorting often needs significant margin and comes with borrowing costs.

• Execution: Long puts can be bought and sold on the ASX options market, subject to liquidity. Shorting requires finding shares to borrow, which may be restricted or costly — especially for less liquid stocks.

• Regulation & Accessibility: As of 2025, ASIC continues to tightly regulate retail short selling. Many platforms limit access, and brokers may recall borrowed shares at any time. Options trading, after passing a suitability test, is more broadly accessible to retail investors.

• Dividends: Short sellers must pay any dividends owed during the short period. Put option holders are unaffected.

• Profit Potential: Long puts have limited upside (strike price minus premium), while shorting theoretically profits all the way to zero — but with much higher risk.

Which is better? For many retail investors in Australia, long puts provide a lower-risk, more accessible way to bet on a stock’s decline — especially in volatile or uncertain markets like those seen in early 2025. However, short selling remains popular among experienced traders seeking higher (but riskier) returns and willing to manage the complexities of margin and stock borrowing.

2025 Market Trends and Policy Updates

With ASX volatility persisting in 2025 amid global economic uncertainty, options trading volumes have continued to climb. ASIC’s 2024 review reaffirmed that retail investors must pass knowledge checks before accessing options or leveraged products. Meanwhile, short selling remains under scrutiny, especially for small-cap stocks where liquidity squeezes can cause wild price swings.

Recent moves by some major brokers to tighten lending for short selling have pushed more investors towards using long puts for downside protection or speculative bets. New educational resources and demo accounts from Australian brokers have also made options trading more approachable for everyday investors.

Conclusion

Both long puts and short selling can profit from falling share prices, but they suit different appetites for risk, capital, and complexity. For most Australian retail investors in 2025, buying a long put offers a safer, simpler way to play the downside — with losses capped and no margin headaches. As always, it pays to understand your strategy and choose the tools that fit your goals and risk tolerance.