Serum 207 (1)
P2PBuy limit: 2,000·last trade 19m ago
Confidence
Confidence32%
One score blending fill chance, market volume and profit quality.
Fill chance25%
Volume17%
Profit52%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at14
Buy fills0%
Sell at17
Sell fills9%
Net / item3 (21.4%)
Est. profit / 4h6.0K
2,000 units · 25% fill confidence
Insta-sell
13
cheapest buy (full spread)
Insta-buy
18
dearest sell (full spread)
Gross margin
5
GE tax
0
2% per item, max 5M
Net margin
5
38.5% ROI
Volatility
65.2%
price noise (1h history)
How to flip the Serum 207 (1)
The Serum 207 (1) is a members-only Old School RuneScape item — “1 dose 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 13 gp and sells at 18 gp — a net margin of 5 gp (38.5% ROI) after the 2% Grand Exchange tax. High alchemy yields 6 gp.
To flip it, place a buy offer near 13 gp and a sell offer near 18 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 volume19%
Two-sided liquidity0%
Recent activity85%
Size vs market0%
Why this profit score
Spread persistence40%
No price spike100%
Margin plausibility88%