How to flip Gilded 2h sword in OSRS

Flipping Gilded 2h sword on the Old School RuneScape Grand Exchange currently makes about 78,510 gp profit per item after the 2% GE tax: buy near 3,506,279 gp (the instant-sell price) and re-list near 3,657,947 gp (the instant-buy price).

• Buy at (instant-sell): 3,506,279 gp
• Sell at (instant-buy): 3,657,947 gp
• Margin after 2% tax: 78,510 gp (2.24% ROI)
• Buy limit per 4 hours: 70
• 24h volume: 71 (thinly traded)
• Max profit per limit cycle: 5,495,700 gp on 245,439,530 gp of capital

The flip, step by step

1. Place a buy offer at or just above 3,506,279 gp (the current instant-sell price).
2. Wait for the fill. Gilded 2h sword is thinly traded right now, so offers can sit for hours; only flip with patience and wide margins.
3. Re-list at or just below 3,657,947 gp (the current instant-buy price).
4. The GE takes 73,158 gp tax (2%) per item when it sells, leaving 78,510 gp profit each.
5. Repeat up to the buy limit (70 per 4 hours), a full cycle is 5,495,700 gp on 245,439,530 gp of capital.

Margins move constantly. Re-check the live Gilded 2h sword numbers and price chart on GrandExchange.com right before committing.