Transfer-market system

Optimize:

Expected profit per unit of capital per transfer-list slot per day

Do not optimize the largest possible headline selling price. A smaller sale completed twice can outperform a large theoretical margin that blocks a list slot for a week.

• Players are acquired through Transfer List, Scout, and Negotiations.
• OSM is not a conventional ascending-bid auction market.
• Engine purchases contain substantial randomness.
• Higher asking prices and expensive/high-rated players are generally harder to sell.
• Selling tends to become harder late in the season.
• Events can improve sales, replenish the market, speed the Scout, and expand list capacity.
• Direct Sell can provide emergency liquidity, but current price/Boss Coin cost must be checked in the live UI.
• Squad minimums constrain sales.

The source reports consistently identify these minimum holdings:

Line	Minimum
Goalkeepers	2
Defenders	4
Midfielders	4
Attackers	3

If a sale would breach the floor, acquire the replacement first.

Low acquisition cost
+ realistic resale ceiling
+ high sale probability
+ short holding period
+ sporting/training usefulness while held
= strong trading asset

Favor:

• cheap and mid-priced players;
• younger players when economics are otherwise similar;
• ratings below the most illiquid elite bands;
• scarce positions in your current league;
• assets with a tolerable downside if the engine does not buy;
• early/mid-season inventory;
• sale-event catalysts.

Treat 100+ players mainly as sporting assets unless the acquisition discount or event catalyst is strong. The exact point of illiquidity varies by league and stage.

Score each factor from 0–2:

Factor	0	1	2
Discount to realistic resale	<15%	15–30%	>30%
Rating liquidity	105+	90–104	<90
Age/training upside	30+	25–29	≤24
Season timing	Final third	Middle	Early
Event catalyst	None	Possible	Active relevant event
Position supply	Oversupplied	Normal	Scarce
Downside/liquidation	Large loss	Moderate	Near cost
Listing capacity	No room	Tight	Comfortable

Interpretation:

• 13–16: strong flip
• 10–12: acceptable, especially with sporting utility
• 7–9: speculative
• 0–6: avoid as pure inventory

Use the live in-game maximum as authoritative. These are starting ranges, not engine rules:

Rating	Normal starting multiple of player value	Sale-event range	Objective
≤80	2.30–2.50×	2.40–2.50×	Maximize margin
81–90	2.10–2.40×	2.30–2.50×	Balance margin and turnover
91–99	1.90–2.30×	2.10–2.45×	Protect liquidity
100–109	1.70–2.10×	1.90–2.30×	Liquidity first
110+	1.50–1.90×	1.75–2.15×	Avoid trapped capital

Reduce another 10–20% when liquidity is urgently required. Do not assume an event guarantees a sale.

Time unsold	Action
0–24 hours	Normally hold; one missed period says little
24–48 hours	Maintain cheap/mid assets unless conditions changed
48–72 hours	Review competition, event timing, capital need, and season stage
72+ hours	Reduce pure-inventory pricing if no catalyst exists
7 days	Classify as trapped inventory and exit aggressively unless a specific event is imminent

Let:

• C = purchase cost
• S = intended sale price
• D = fallback/liquidation value
• p = probability of sale inside the chosen horizon
• B = Boss Coin economic cost
• R = required profit

Expected proceeds = p × S + (1 − p) × D
Expected profit = p × S + (1 − p) × D − C − B
Maximum rational cost = p × S + (1 − p) × D − B − R

Add time and capital efficiency:

Expected ROI = Expected profit / Purchase cost
Expected ROI per day = Expected ROI / Expected holding days
Trading efficiency = Expected profit / (Capital invested × Listing days)

Trade type	Minimum modeled gross ROI	Intended maximum hold
Low-value/high-liquidity	25–30%	24–48h
Mid-value	20–25%	48–72h
90–99 rating	25–35%	72h
100+ speculative	40%+	Prefer event window
Young train-and-flip	30%+ total	2–5 matchdays

These are risk rules, not game mechanics.

Bucket	Suggested share
Starting-XI/sporting upgrades	50–65%
Liquid trading inventory	20–30%
Event/opportunity reserve	10–15%
Cash buffer	10–15%

Never make your ability to field or improve the team dependent on an uncertain engine sale.

Asset	Maximum share of liquid funds
High-liquidity trade	10–15%
Medium-liquidity trade	7–10%
100+ speculative trade	5–7%

Normal allocation:

• 2 slots: fast low/mid-value turnover
• 1 slot: higher-margin mid-tier trade
• 1 slot: squad disposal or speculative asset

When events expand capacity, use extra slots partly to clear normally difficult inventory rather than only adding more low-margin assets.

1. Refill empty listing slots.
2. Scan for young, cheap, sub-100, or locally scarce candidates.
3. Calculate cost/value multiple, realistic resale, probability, profit, and hold time.
4. Confirm squad floors and cash buffer.
5. Buy only if the trade clears your return threshold or materially improves the XI.
6. Review unsold players on the repricing schedule.
7. Reinvest completed-sale proceeds quickly.
8. Check the official event schedule; do not act on rumors.
9. Log every transaction manually.

Field	Record
Purchase timestamp / matchday	Timing and season stage
Event active	Event effect
Position / age / rating	Asset archetype
Player value	Valuation base
Purchase price	Cost basis
Initial and revised asks	Pricing strategy
Sale price and timestamp	Realized outcome
Engine/human buyer if known	Buyer type
Training gain	Pure flip vs train-and-flip
Boss Coins spent	True economic cost
Profit / ROI / hold days	Performance
Profit per slot-day	Primary efficiency metric

After 50–100 observations, compare sale probability and time-to-sale by rating, age, position, season stage, and event. Your league-specific log is more useful than a universal price myth.

• Do not use coordinated one-sided manager transfers or collusion.
• Do not automate scraping, API collection, or transfer sniping without explicit authorization.
• Safe workflow: observe manually → log manually → analyze offline → decide manually.

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