How to flip Ruby bolt tips in OSRS

Flipping Ruby bolt tips on the Old School RuneScape Grand Exchange currently makes about 0 gp profit per item after the 2% GE tax: buy near 80 gp (the instant-sell price) and re-list near 81 gp (the instant-buy price).

• Buy at (instant-sell): 80 gp
• Sell at (instant-buy): 81 gp
• Margin after 2% tax: 0 gp (0.00% ROI)
• Buy limit per 4 hours: 11,000
• 24h volume: 1,937,733 (extremely liquid)
• Max profit per limit cycle: 0 gp on 880,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 80 gp (the current instant-sell price).
2. Wait for the fill. Ruby bolt tips is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 81 gp (the current instant-buy price).
4. The GE takes 1 gp tax (2%) per item when it sells, leaving 0 gp profit each.
5. Repeat up to the buy limit (11,000 per 4 hours), a full cycle is 0 gp on 880,000 gp of capital.

Margins move constantly. Re-check the live Ruby bolt tips numbers and price chart on GrandExchange.com right before committing.