Serum 207 (3)
P2PBuy limit: 2,000·last trade 13m ago
Confidence
Confidence26%
One score blending fill chance, market volume and profit quality.
Fill chance21%
Volume7%
Profit55%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at26
Buy fills0%
Sell at30
Sell fills3%
Net / item4 (15.4%)
Est. profit / 4h8.0K
2,000 units · 21% fill confidence
Insta-sell
25
cheapest buy (full spread)
Insta-buy
31
dearest sell (full spread)
Gross margin
6
GE tax
0
2% per item, max 5M
Net margin
6
24.0% ROI
Volatility
30.6%
price noise (1h history)
How to flip the Serum 207 (3)
The Serum 207 (3) is a members-only Old School RuneScape item — “3 doses serum 207 as described in Herbi Flax's diary.”. Its Grand Exchange buy limit is 2,000 per 4 hours. Right now it buys at 25 gp and sells at 31 gp — a net margin of 6 gp (24.0% ROI) after the 2% Grand Exchange tax. High alchemy yields 7 gp.
To flip it, place a buy offer near 25 gp and a sell offer near 31 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume8%
Two-sided liquidity0%
Recent activity90%
Size vs market0%
Why this profit score
Spread persistence40%
No price spike100%
Margin plausibility100%