Broker analysis
IDX publishes who traded what, every single day. The Broker Summary tab is the raw receipts behind every other signal: who is buying, who is selling, and whether they mean it. When a higher-level read like CADI says "accumulation", this is where you come to see it with your own eyes.
Net lots, and whether they mean it
For each broker, net lots is simply buy minus sell over the window you choose. Positive means that desk was a net accumulator, negative a net distributor. Rank them and you have the day's real buyers and sellers, the foundation every flow signal on the platform is built from.
Size alone can mislead, though, because a single large print is not the same as a campaign. The consistency figure next to each broker is how often it has stayed on the same side across recent sessions. One big purchase is a shopper; the same buyer showing up every day for a week is a campaign. That streak is what turns "someone bought" into "someone is accumulating".
Broker summary
net lots · top brokers
Reading the flow
Ranked as a diverging bar, the day's book tells its story at a glance: who is accumulating, who is distributing, and how lopsided the two sides are. The read you want is a handful of large, consistent desks stacked on one side against a scattered crowd on the other. That concentration is what turns raw net lots into a real signal, rather than the usual noise of everyone trading with everyone.
MDKA broker net flow
net lots · top accumulators vs distributors
Bars run from the center: buyers right, sellers left, sized by net lots. The percentage by each desk is its consistency, how often it has stayed on one side. PD dwarfs the book at +2.1M lots, with LG and DH the largest distributors: a concentrated, two-sided flow rather than a matched one.
Foreign flow
The Broker Activity calendar also tracks foreign flow, the net buying routed through foreign accounts, which you can read day by day. It is worth watching, but we keep it out of our scoring for an honest reason. On IDX it can be gamed: local accounts can be dressed up as foreign ones, and in our testing foreign flow was actually anti-predictive, adding it to a good signal made the results worse. Read persistent foreign buying in a large-cap as corroboration, never as a trigger on its own.
In short
- Net buying routed through foreign accounts
- Gameable on IDX: local accounts dressed as foreign
- Anti-predictive in testing: context, not a trigger
Reading it day to day
The same names on the buy side for several sessions is a real campaign, not a blip. That persistence is the signal, more than the size of any single day.
A top buyer suddenly flipping to the sell side is a change of heart worth respecting. Tighten your stop or step aside.
Buyers concentrated while sellers are scattered is accumulation by a few hands against many small sellers, the strongest version of the read.
This raw broker data feeds CADI and the concentration signals, so the Broker tab is where you go to verify why a higher-level read is saying what it says.
Broker codes are desks, not owners. One desk can act for many clients, and a single large client can route through several desks, so read the flow as pressure and conviction, not as a named institution's portfolio.
It is one input, not the whole read. Broker flow is strongest when it confirms the structure and the calibrated signal, not on its own.