Serum 207 (3)
P2PBuy limit: 2,000·last trade 12m ago
Confidence
Confidence47%
One score blending fill chance, market volume and profit quality.
Fill chance41%
Volume50%
Profit54%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at39
Buy fills27%
Sell at41
Sell fills0%
Net / item2 (5.1%)
Est. profit / 4h4.0K
2,000 units · 41% fill confidence
Insta-sell
38
cheapest buy (full spread)
Insta-buy
42
dearest sell (full spread)
Gross margin
4
GE tax
0
2% per item, max 5M
Net margin
4
10.5% ROI
Volatility
62.0%
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 38 gp and sells at 42 gp — a net margin of 4 gp (10.5% ROI) after the 2% Grand Exchange tax. High alchemy yields 7 gp.
To flip it, place a buy offer near 38 gp and a sell offer near 42 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 volume56%
Two-sided liquidity0%
Recent activity90%
Size vs market0%
Why this profit score
Spread persistence40%
No price spike100%
Margin plausibility100%