WiseRSI™ User’s Guide

1. What is WiseRSI™?

WiseRSI is a visual decision aid for stock traders. It shows a single-page-style report: a Buy, Hold, or Sell label based on the classic 14-period RSI, plus recent price context in tables and small charts.

It is not a crystal ball and not financial advice. Use it alongside your own research, risk limits, and (if needed) a licensed advisor.

2. Getting started

Alpha Vantage API key (free)

1. Open alphavantage.co — get API key.
2. Enter a name and email, then request your key.
3. Copy the key into WiseRSI’s API key field. It is stored only in your browser (local storage).

The free tier allows 25 requests per day. Each analysis uses one request for daily prices, plus a second request for the company name lookup unless you type the name in the optional Company field (then the second call is skipped). If you enter Today’s price, that row is added locally (no extra request) and the optional GLOBAL_QUOTE call is skipped for that run.

Run an analysis

1. Type a ticker symbol (e.g. AAPL). Editing the ticker clears the Company field so names do not stick to the wrong symbol.
2. Optionally type the company name to skip the name API and save quota.
3. Optionally enter Today’s price (per share, usually your broker’s last) if the daily feed has not caught up yet. That row uses your figure for the whole candle (OHLC/typical). When set, RSI includes that point; when left blank, RSI uses the daily series only (and WiseRSI may still add a row from GLOBAL_QUOTE when applicable).
4. Paste your API key (once).
5. Click Analyze.

Demo mode

Click Demo to load synthetic sample data without calling the API. Use it to explore the layout before you have a key.

3. Reading the results

Recommendation card

• Ticker — the symbol you analyzed.
• Company name — from the optional Company field if you entered it, otherwise from Alpha Vantage when available (e.g. TSLA Tesla Inc.).
• Price — latest typical price from the daily series (or your optional today / quote row).
• Signal — large word: buy, hold, or sell, from RSI thresholds.
• RSI — the 14-period Wilder RSI value on the daily typical-price series.
• Reasoning — short plain-English explanation of why that signal appears.

RSI gauge (“slider”)

The horizontal bar is divided into three zones: Oversold (roughly 0–30), Neutral (30–70), and Overbought (70–100). Numbers 0, 30, 50, 70, and 100 are marked below. The needle shows the current RSI; its color matches the signal.

14 trading days & Past 14 weeks

Each section has a sparkline (mini price chart), a trend line, and two side-by-side tables of seven rows each — newer half on the left (top-left row is the most recent date in the 14-bar window), older half on the right (top-right row is the newest date in that earlier half). Within each column, rows run newest at the top to older below. The chart still covers the full 14-point window.

• Date / Week ending — calendar label for that row.
• Price — typical price for that day or week: (Open + Close) / 2 on raw Alpha Vantage daily OHLC, after an optional one-time split rescale (see below).
• Change — percent change vs the previous trading day or week in the full 14-bar window (older bar), including across the boundary between the left and right tables. The oldest row in the window has no prior bar, so Change shows an em dash.
• Cumulative — running sum of those period % changes from the oldest row in the window through the current row. The oldest row shows +0.00%. This is an arithmetic sum of step returns, not the same as compounding; it helps you see how day-to-day or week-to-week moves add up.

Sparkline charts

• Line — typical price over the window (oldest on the left, newest on the right).
• Shaded area — light fill under the line for contrast.
• Dot — marks the latest price.
• Horizontal axis — a baseline with small tick marks under each bar so you can align the slope with time.
• Weekly chart only — a gold-tinted vertical band marks which week(s) on the 14-week axis overlap the calendar span of the 14 trading days in the daily table (browser tooltip from the band describes it).

Trend line under each chart

Text such as Trend: +1.24% over 14 trading days is the total percent change from the first to the last typical price in that chart window (one number, not the sum of steps). Compare with the Cumulative column if you want both views.

A dashed straight line on each sparkline is a simple least-squares fit through the same displayed points — not a forecast; with only fourteen points it can shift noticeably if one week or day is an outlier. When there are at least three points, the trend text may add a small best fit slope in dollars per day or per week.

Latest calendar day. Raw daily data from TIME_SERIES_DAILY is usually the last completed session. When your local “today” is ahead of that bar and you did not enter Today’s price, WiseRSI may add one row from GLOBAL_QUOTE (same API key) so the table and headline can show today’s price when the quote feed reports today as the latest trading day; RSI still uses the daily series only in that case. If you did enter today’s price, that row replaces any same-date bar from the feed and RSI includes it. On weekends, holidays, or before feeds update, you may still see the prior session unless you type a price yourself.

4. Understanding RSI

RSI (Relative Strength Index) measures how strongly price has moved up vs down over the last 14 trading days (by default). WiseRSI uses Wilder smoothing, the classic definition.

Daily prices come from TIME_SERIES_DAILY (free tier). Typical price is (Open + Close) / 2. If two adjacent trading days look like a stock split (ratio within about 8% of an integer from 2 to 32), WiseRSI may rescale all older days once so charts and RSI are less distorted — this is not dividend-adjusted and can false-positive on large earnings moves or multiple splits in the same window.

Weekly bars use the first open and last close of each Monday–Friday calendar week (same typical formula).

Thresholds (defaults): RSI below 30 suggests oversold conditions (often labeled Buy in classic usage). Above 70 suggests overbought (often labeled Sell). Between 30 and 70 is treated as Hold / neutral.

5. Exporting your results

After a successful analysis, use the buttons in the recommendation header:

• PDF — Opens the browser print dialog. Choose Save as PDF for a one-page-style report. You can also use Ctrl+P (Windows) or Cmd+P (Mac) when results are visible.
• CSV — Downloads a comma-separated file. Rows include: section, date, open, close, typical_price, change_pct, cumulative_change_pct, plus comment lines at the top with ticker, company name (if known), signal, RSI, and reasoning.
• Share — On supported devices, opens the system share sheet with a short text summary. Elsewhere, the same action may copy the summary to your clipboard.

6. Installing the app (PWA)

WiseRSI can be installed like an app from a normal HTTPS (or localhost) site:

• Chrome / Edge (desktop) — Install icon in the address bar.
• iOS Safari — Share → Add to Home Screen.
• Android Chrome — Menu → Add to Home Screen / Install app.

Offline: If you lose connection, the last successful result may still appear from your browser cache, with an offline notice.

After an update: If the screen still looks like an old version, use Update app in the footer on the main page — it clears the offline app cache and reloads (your saved API key is not removed).

7. Dark mode & readability

The app follows your system light or dark preference. Typography and spacing are tuned for comfortable reading and for print/PDF export.

8. Disclaimer

Not financial advice. WiseRSI is a visual decision aid using Alpha Vantage raw dailies, an optional rough split rescale, and RSI. It cannot account for earnings, news, volume, macroeconomic factors, or risk tolerance. Trends can override RSI signals for weeks. Do your own research and consider consulting a licensed financial advisor.