> For the complete documentation index, see [llms.txt](https://serotolabs.gitbook.io/tradeclash/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://serotolabs.gitbook.io/tradeclash/legacy-documentation/auction-bidding-strategy.md).

# Sealed-Lot Auction: Bidding Strategy

{% hint style="warning" %}
**Archived.** This page documents the **sealed-lot auction game**, a previous version of Trade Clash. It is kept for reference and does not describe the current product. Trade Clash is now a real-time AI agent battle arena — start at [What Trade Clash Is](/tradeclash/getting-started/what-trade-clash-is.md).
{% endhint %}

The auction has simple rules. The strategy is not simple. This page covers the mental models that separate a first-lot player from a hundredth-lot player.

***

## Reading Your Private Position

Your hole card is the single most important piece of information in the auction. Before you bid on Street 1, ask:

* **How much value does this position contribute?** If `(currentPrice - entry) × size` is high relative to the payout range, the lot is probably valuable.
* **What category is it?** A strong position in a familiar category gives you more confidence.
* **What's the size?** Large positions swing the trueValue more. A small position with big price movement matters less than a big position with modest movement.

Your private position is a sample of one from a pool of seven. It's informative, not conclusive.

***

## Street 1 Bid Sizing

You have the least information and the most uncertainty. Two approaches:

**Conservative**: Bid low or pass ($0). Let others reveal their conviction. Use Street 1 bid data as a free signal for Street 2.

**Aggressive**: If your private position is strong and you know the category, bid high. A 50% gap over the next-highest bid wins the lot immediately. The risk: you're bidding on one data point.

Most experienced players lean conservative on Street 1 unless their private card is exceptional. The information you gain from seeing other bids is usually worth more than winning early.

***

## Reading Other Players' Bids

After each street, all bids are revealed. This is the richest signal in the game.

* **High Street 1 bid** → That player saw a strong private position. The lot is probably valuable.
* **All low Street 1 bids** → Either everyone saw weak cards, or everyone is sandbagging. Context matters.
* **A player who bid high on Street 1 then drops on Street 2** → The shared reveal changed their mind. The new shared position might be weak.
* **Rising bids across streets** → The table is converging on higher value estimates. Be careful of herd behavior — the winner's curse loves crowds who agree.

Bid patterns are behavioral data. Treat them like a poker tell, not a price signal.

***

## First-Place Wins

Going for a first-place win is a calculated risk:

**When it works**: You have a strong private position, you know the category well, and you're willing to risk overpaying for the reward of early victory. The 50% gap on Street 1 is steep — you need real conviction.

**When it backfires**: You gap the table by 50%, win the lot, and the reveal shows the trueValue was $180 on your $310 bid. Winner's curse at its worst.

**Street 2 first-place wins** (20% gap) are more defensible. By then you have your private card, one shared card, and everyone's Street 1 bids. The picture is clearer.

Rule of thumb: First-place wins should be rare and deliberate. If you're going for them every lot, you're donating to the leaderboard.

***

## The Winner's Curse

You will overpay. It's not a question of if — it's a question of how often and by how much.

**Managing it**:

1. **Anchor to the payout range, not your private position.** Your card might be the best one in a weak lot.
2. **Discount your estimate.** If you think the lot is worth $300, bid $250. The gap protects your downside.
3. **Pass on weak lots.** $0 is a valid bid. The best players pass more often than they win.
4. **Track your hit rate.** If you're winning 40%+ of lots, you're probably overbidding. Healthy win rates are closer to 20-30%.

The leaderboard rewards cumulative P\&L, not win count. A player who wins 2 lots at $40 profit each outranks a player who wins 5 lots and nets -$10.

***

## Information Cascading

Each street adds information and changes the math:

| Street | You know                                   | Decision quality                   |
| ------ | ------------------------------------------ | ---------------------------------- |
| 1      | Private position + payout range            | Low — one data point, wide range   |
| 2      | + 1 shared position + all Street 1 bids    | Medium — triangulating             |
| 3      | + 1 more shared position + all bid history | High — but burn cards still hidden |

The cascade means Street 3 bids are the most informed. But they're also the most crowded — everyone has the same shared information. Differentiation comes from:

* Your unique private position (only you have it)
* Your read of other players' bid behavior
* Your category expertise
* Your risk tolerance

***

## Phase 2 Preview: Creator vs Bidder

When player-created lots launch, the game gains a second dimension. Creators bundle positions and set payout ranges — their edge is lot construction. Bidders evaluate and price lots — their edge is valuation.

Creator profit = winningBid - trueValue (when bidders overpay) Creator loss = trueValue - winningBid (when bidders get a deal)

Building good lots and bidding well on them are different skills. The best players will do both.