> For the complete documentation index, see [llms.txt](https://docs.tread.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tread.fi/bots/market-maker-bot/reference-price-modes-and-risk-controls/mid-mode.md).
# Mid Mode
Mid Price Mode was the original mode and remains the most effective for general liquidity provision.
Quotes are placed based strictly on the current order book mid-price.
* **Behavior:** Orders float with the market price. It does not track the specific entry price of open positions when placing new quotes.
* **Best For:** General purpose market making, volume generation, and Point farming where liquidity provision and getting the order complete is a priority over per-trade PnL.
* **Pros:** High probability of fill, speed and follows the market trend.
* **Cons:** Profitable spreads are not guaranteed relative to your entry price for each leg (you might buy high and sell low if the market drops fast).
**Available Spread Options:**
**The Spread Scale (-50 bps to +50 bps):** The spread setting functions as a trade-off between **Fill Rate** and **Profit Margin.**
* **Lower Spreads (0 – 2 bps): Prioritizes Speed.** You place orders very close to the market price to maximize execution frequency and capture exchange fees/rebates. The trade-off is little to no profit from the spread itself.
* **Higher Spreads (-10 to + 100 bps): Prioritizes Margin.** You place orders further away ("fishing"), waiting for volatility to hit your price. You get fewer fills, but each fill captures a significantly larger profit. However this can amplify your losses significantly. Wider the spreads the further away you are from the mid price
#### **Directional Bias Control**
Directional bias control allows you to influence the timing and distribution of your buy and sell orders based on your market outlook.
**How Directional Bias Works**
* **Long Bias**: Favors long positions by front-loading buy orders and back-loading sell orders
* **Short Bias:** Favors short positions by front-loading sell orders and back-loading buy orders
* **Neutral**: Equal timing distribution for both buy and sell orders
**Additional Notes on Directional Bias**
* **Alpha Tilt Adjustment**: Directional bias maps linearly to alpha tilt adjustments (±1 → ±0.2 alpha tilt)
* **Buy Orders**: Positive bias adds positive alpha tilt (front-loads), negative bias adds negative alpha tilt (back-loads)
* **Sell Orders**: Positive bias adds negative alpha tilt (back-loads), negative bias adds positive alpha tilt (front-loads)
* **Risk Management**: Extreme bias values (±1) require up to 20% additional margin to account for increased directional exposure
**Use Cases**
* **Bullish Outlook**: Set positive bias to capture upward price movements more aggressively
* **Bearish Outlook**: Set negative bias to benefit from downward price movements
* **Market Neutral**: Keep at 0 for balanced market making without directional exposure