Daily Oversold Swing Screener

That script is a **Pine Script Indicator** designed to identify potential **swing trade entry points** on a daily timeframe by looking for stocks that are **oversold** but still in a **healthy long-term uptrend**.

It screens for a high-probability reversal setup by combining four specific technical conditions.

Here is a detailed breakdown of the script's purpose and logic:

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## 📝 Script Description: Daily Oversold Swing Screener

This Pine Script indicator serves as a **momentum and trend confirmation tool** for active traders seeking short-to-intermediate-term long entries. It uses data calculated on the **Daily** timeframe to generate signals, regardless of the chart resolution you are currently viewing.

The indicator is designed to filter out stocks that are in a strong downtrend ("falling knives") and only signal pullbacks within an established uptrend, which significantly increases the probability of a successful swing trade bounce.

### 🔑 Key Conditions for a Signal:

The indicator generates a buy signal when **all four** of the following conditions are met on the Daily timeframe:

#### 1. Oversold Momentum
* **Condition:** `rsiD < rsiOS` (Daily RSI is below the oversold level, typically **30**).
* **Purpose:** Confirms that the selling pressure has been extreme and the stock is temporarily out of favor, setting up a potential bounce.

#### 2. Momentum Turning Up
* **Condition:** `rsiD > rsiPrev` (Current Daily RSI value is greater than the previous day's Daily RSI value).
* **Purpose:** This is the most crucial filter. It confirms that the momentum has **just started to shift upward**, indicating that the low may be in and the stock is turning away from the oversold region.

#### 3. Established Uptrend (No Falling Knives)
* **Condition:** `sma50 > sma200 and closeD > sma50` (50-day SMA is above the 200-day SMA, AND the current daily close is above the 50-day SMA).
* **Purpose:** This is a **long-term trend filter**. It ensures that the current oversold condition is just a **pullback** within a larger, structurally bullish market (50 > 200), and that the price is still holding above the short-term trend line (Close > 50 SMA). This effectively screens out weak stocks in continuous downtrends.

#### 4. Price at Support (Bollinger Bands)
* **Condition:** `closeD <= lowerBB` (Daily Close is less than or equal to the lower Bollinger Band).
* **Purpose:** Provides a secondary measure of extreme price deviation. When the price touches or breaches the lower band, it suggests a significant move away from the mean (basis), often signaling strong statistical support where price is likely to revert.

### 📌 Summary of Signal

The final signal (`signal`) is triggered only when the market is confirmed to be **in a healthy long-term trend (Condition 3)**, the price is at an **extreme support level (Condition 4)**, the momentum is **oversold (Condition 1)**, and most importantly, the **momentum has begun to reverse (Condition 2)**.