Broker profile
Commonwealth Securities · Australia
CommSec, with an AI that reads every holding you own.
What CommSec is, what it costs on the ASX and overseas, how your shares are held, and how Walnut reads your CommSec holdings next to every other broker and gives each one a keep, trim or exit read.
- Reads your CommSec account
- Each holding vs the S&P 500
- Login stays at CommSec
Your CommSec, in Walnut
ConnectedHow concentrated is my CommSec portfolio?
Your four bank and miner holdings make up most of it, and one sits above a quarter on its own, so Walnut flags it and shows why.
Pricing and fees, checked October 2026
How much does CommSec cost?
- ASX trade online, up to A$1,000
- A$5
- ASX trade online, above A$25,000
- 0.12%
- US trade, or 0.12% if greater
- US$5
- FX fee per currency conversion
- 0.55%
- First buy of any ASX stock, minimum
- A$500
- Application and account keeping fee
- A$0
AI features
CommSec ships no AI assistant of its own
As of October 2026, CommSec's site mentions no AI assistant and no official connector for ChatGPT or Claude, so an assistant sees CommSec holdings only through an app that links the account.
Where Walnut fits
CommSec shows each position and its value. Walnut reads CommSec next to any other broker you connect, puts each holding against the S&P 500, flags any one name over a quarter of the portfolio, and answers questions about all of it.
Pricing
What CommSec costs
CommSec's published rates, checked October 2026. Walnut charges nothing extra to connect CommSec.
With Walnut
What you can do with CommSec here
- Read your CommSec holdingsEvery position, with live prices
- Each holding against the S&P 500One-year price return, momentum and size
- A keep, trim or exit readPer holding, with any name over 25% flagged
- Goals and net worthCommSec counted next to your other accounts
- Place orders from WalnutNot at CommSec. You place them in CommSec
Everything else people ask about CommSec, answered plainly.
Short answer
Joining is free and the app is simple, but it is not the cheapest on small trades. An online ASX trade costs A$5 up to A$1,000 and A$10 up to A$3,000, and the first buy of any ASX stock must be at least A$500.
CommSec Pocket is the lower-cost route for small amounts: A$2 a trade up to A$1,000, and you can start from A$50. For US shares, the International Shares account charges US$5 or 0.12% a trade, plus a 0.55% fee each time money is converted.
What CommSec lacks is a read on the whole portfolio. It shows each position and its value, not whether a few banks and miners now carry most of the risk. That is the gap an AI that reads the account can close.
Read the full guide: Best share trading platforms for beginnersShort answer
CommSec is Commonwealth Securities Limited, AFSL 238814, a wholly owned but non-guaranteed subsidiary of the Commonwealth Bank. New share trading accounts are CHESS sponsored, so your ASX shares sit under your own HIN. None of that protects against market losses.
Connecting CommSec to Walnut runs through a secure connection where you sign in at CommSec. Walnut never sees or stores your CommSec password, holds no money and moves none, and you can disconnect from Walnut's Brokerage screen at any time.
238814
CommSec's AFS licence number
HIN
ASX shares held in your name
CBA
Owner, non-guaranteed subsidiary
Short answer
Not directly. As of October 2026 CommSec has no AI assistant and no official connector for ChatGPT or Claude. An app such as Walnut links CommSec through a secure connection, and its connector lets Claude and ChatGPT read those holdings.
Through Walnut, CommSec is read in full: every position, each one against the S&P 500, and a keep, trim or exit read per holding. Orders are not placed from Walnut at CommSec, so any trade the assistant describes is one you place in CommSec yourself.
Read the full guide: Every way to connect a brokerage to an AI assistantBuying through Walnut works at Public and Robinhood, and at eight other brokers including Stake, E*Trade and tastytrade. CommSec and Interactive Brokers read in full and stay view-only.
Quick answers
- What does CommSec charge per ASX trade?
- Online, A$5 up to A$1,000, A$10 up to A$3,000, A$19.95 up to A$10,000, A$29.95 up to A$25,000, then 0.12%.
- What is CommSec Pocket?
- CommSec's app for small amounts. Trades cost A$2 up to A$1,000 and 0.20% above that, and you can start investing from A$50.
- Can Walnut trade in my CommSec account?
- No. Walnut reads CommSec in full and places no orders there. You place trades in CommSec; buying through Walnut works at Public and Robinhood, and at eight other brokers including Stake, E*Trade and tastytrade.
- Does Walnut see my CommSec cost basis?
- No. CommSec holdings arrive without cost basis, so Walnut shows each holding's price return against the S&P 500 rather than profit and loss.
- Does Walnut see my CommSec password?
- No. You sign in at CommSec through a secure connection. Walnut never sees or stores the password and never holds or moves money.
- Is connecting CommSec to Walnut free?
- Yes. Connecting is free, and so is the assistant up to a per-session allowance. Walnut Unlimited, $9.99 a month on the web, lifts that limit.
Keep reading
Sources, checked October 2026
- CommSec rates and fees: ASX online tiers A$5 to 0.12%, US$5 or 0.12%, 0.55% FX, A$0 application and account keeping, Pocket A$2 or 0.20%
- CommSec minimum purchase: A$500 first buy of a stock; Pocket from A$50
- CommSec home: AFSL 238814, wholly owned but non-guaranteed subsidiary of CBA, 13 global markets
- CommSec FAQ: new accounts are CHESS sponsored with a unique HIN
- Stake pricing: A$3 / US$3 up to $30,000, 55 bps FX
- Interactive Brokers Asia-Pacific stock commissions (ASX 0.08%, A$6 minimum fixed)
- Interactive Brokers US stock commissions (Pro Fixed US$0.005 a share)
Walnut is an AI financial advisor app; it is not a registered investment adviser. Nothing here is a recommendation to buy or sell a security. Broker fees, products and availability change, so check the current terms with the broker.
See your CommSec the way an analyst would.
Connect in about a minute. Your login stays at CommSec.