How to flip Onyx dragon bolts (e) in OSRS

Flipping Onyx dragon bolts (e) on the Old School RuneScape Grand Exchange currently makes about 175 gp profit per item after the 2% GE tax: buy near 8,610 gp (the instant-sell price) and re-list near 8,964 gp (the instant-buy price).

• Buy at (instant-sell): 8,610 gp
• Sell at (instant-buy): 8,964 gp
• Margin after 2% tax: 175 gp (2.03% ROI)
• Buy limit per 4 hours: 11,000
• 24h volume: 18,630 (very liquid)
• Max profit per limit cycle: 1,925,000 gp on 94,710,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 8,610 gp (the current instant-sell price).
2. Wait for the fill. Onyx dragon bolts (e) is very liquid right now, so offers usually fill within minutes to a quarter hour.
3. Re-list at or just below 8,964 gp (the current instant-buy price).
4. The GE takes 179 gp tax (2%) per item when it sells, leaving 175 gp profit each.
5. Repeat up to the buy limit (11,000 per 4 hours), a full cycle is 1,925,000 gp on 94,710,000 gp of capital.

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