How to flip Diamond dragon bolts (e) in OSRS

Flipping Diamond dragon bolts (e) on the Old School RuneScape Grand Exchange currently makes about 15 gp profit per item after the 2% GE tax: buy near 2,464 gp (the instant-sell price) and re-list near 2,529 gp (the instant-buy price).

• Buy at (instant-sell): 2,464 gp
• Sell at (instant-buy): 2,529 gp
• Margin after 2% tax: 15 gp (0.61% ROI)
• Buy limit per 4 hours: 11,000
• 24h volume: 1,124,525 (extremely liquid)
• Max profit per limit cycle: 165,000 gp on 27,104,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 2,464 gp (the current instant-sell price).
2. Wait for the fill. Diamond dragon bolts (e) is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 2,529 gp (the current instant-buy price).
4. The GE takes 50 gp tax (2%) per item when it sells, leaving 15 gp profit each.
5. Repeat up to the buy limit (11,000 per 4 hours), a full cycle is 165,000 gp on 27,104,000 gp of capital.

Margins move constantly. Re-check the live Diamond dragon bolts (e) numbers and price chart on GrandExchange.com right before committing.