How to flip Extended stamina potion(4) in OSRS

Flipping Extended stamina potion(4) on the Old School RuneScape Grand Exchange currently makes about 295 gp profit per item after the 2% GE tax: buy near 7,356 gp (the instant-sell price) and re-list near 7,807 gp (the instant-buy price).

• Buy at (instant-sell): 7,356 gp
• Sell at (instant-buy): 7,807 gp
• Margin after 2% tax: 295 gp (4.01% ROI)
• 24h volume: 133,310 (extremely liquid)

The flip, step by step

1. Place a buy offer at or just above 7,356 gp (the current instant-sell price).
2. Wait for the fill. Extended stamina potion(4) is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 7,807 gp (the current instant-buy price).
4. The GE takes 156 gp tax (2%) per item when it sells, leaving 295 gp profit each.
5. Repeat up to the buy limit.

Margins move constantly. Re-check the live Extended stamina potion(4) numbers and price chart on GrandExchange.com right before committing.