How Arthara works, and why you can trust it
Arthara shows you what the biggest players are doing on the Indonesia Stock Exchange: who is buying, at what price, and where a stock sits in its cycle. It does not predict the future. This page explains the method, and the honest testing behind every number.
We show you the market. We don't predict it.
Big institutions read the broker-by-broker order flow, measure exactly where price sits versus fair value, and recognise the fingerprints of accumulation before a stock moves. Arthara puts that same visibility in your hands, built entirely from real IDX exchange data.
Here is the part most stock-signal apps will not tell you. We do not promise returns. The Indonesian market is thin and noisy, and no one has a reliable crystal ball for it. What genuinely helps is making the market observable, the footprints honestly labelled, so you decide better. And because we are honest about what each signal cannot do, you can trust the parts we say it can.
Look closely at those four numbers. Two are genuine edges, one is a coin-flip, and one is actively unhelpful. We publish the disappointing ones next to the good ones, because that is the only way you can trust the good ones.
The four questions
Every signal in Arthara answers one of four questions. Learn these four and the whole product clicks into place. The flow signals, the price signals, the structure signals, and the context signals each slot into one of them.
A single signal is one witness. When several independent witnesses point the same way, you have a stronger read. That is the entire method.
The four questions
every signal answers one of these
- 01Who is trading it?CADI · Concentration · GVPR · Brokers · Foreign flow
- 02At what price?VWAP fair value · MFI
- 03Where in its cycle?Wyckoff · Slipstream · Near-52w-high · Divergence
- 04How does it compare?Market-Risk · Rotation · Sector-relative
Confluence, how it all combines
The method is not to find one magic indicator. It is confluence: stack independent reads, flow, price, structure, context, and act only where they agree.
Three witnesses pointing the same way is a far better bet than any single number. It is still a bet, never a certainty, so you size it, and you decide your exit before you enter.
Confluence
one witness is a guess, several agreeing is an edge
- Flow (CADI rising)agrees
- Structure (accumulation)agrees
- Price (VWAP discount)agrees
- Context (sector leading)neutral
Three independent reads agree, a stronger observation. Still not a certainty, so size it as a bet.
How we test this
Most apps show a backtest that looks amazing and hope you do not ask how it was made. We build for the person who does ask. Every signal is tuned on the past, then graded on a fresh window it has never seen, rolled forward through history, with a gap in between so the test cannot peek at the future.
Three more disciplines keep us honest. We use only what was knowable at each historical date, with no peeking at today's winners. We tell you our history excludes delisted losers, so every backtest is an upper bound. And we refuse to be fooled by illiquid lottery-ticket stocks, since a signal is only trusted if it works on the liquid half of the market. If a number survived all of that, we quote it. If it did not, we say so.
Walk-forward testing
the signal never sees the window it's graded on
Tuned on the past, graded on a fresh window it never saw, rolled forward through history. The 40-day gap stops the test from peeking at the future. If an edge only lives in the training data, it dies here, and we drop it.
What a read looks like
Here is the signal-summary card you will see on any stock, a weighted blend of every signal with the factor stack underneath. Read it as a table of contents, not a command.
Open the factors and check whether flow, price, and structure actually agree. If the lean rests on one weak signal while the others are flat, that is a much thinner case than one where everything lines up.
Signal read
The 5 signals behind the read, weighted by regime. You weigh them.
What you get
Arthara uses a depth gate. The market overview and the top-level read on any stock are free. The depth, the full broker-by-broker flow and the screener, is the paid tier. You always get enough to orient, and you pay for the institutional-grade detail.
- Market-Risk gauge
- The market Heatmap
- Watchlist
- A stock's Summary tab: chart, structure, signal summary
- The Screener, the whole market
- Transaction Analysis: CADI, VWAP, GVPR, concentration
- Broker Summary: the broker-by-broker receipts
- IDX Rotation
Your first ten minutes
Check the weather: the Market-Risk gauge (RISK-ON, CAUTION, or RISK-OFF).
Scan the Heatmap. Is the market broadly green or red, and which sectors are lit up?
Find candidates in the Screener. Start with the Bullish Confluence preset.
Read a stock: the chart, then the signal summary, then the flow. Is CADI rising, are the same brokers buying?
Decide. Count the witnesses, size to your conviction, and set your exit before you enter.
We describe, we do not predict. Every read is an observation of what is happening now, not a forecast.
Confluence reduces risk, it does not remove it. Several agreeing signals is a better bet, and still a bet. Size accordingly, and never bet the farm on one name.
This is not financial advice. Arthara is an information tool; the decision to trade is always yours.