Mark Pelletier

Senior Manager, Active Traders & High Net Worth at @public

Opinions my own - not financial advice

[Mark Pelletier @MarkFromPublic]

https://t.co/ZM46UybeoF

[Matthew@Public @BuildwithPublic]

We're always here for our traders- if you're building, troubleshooting, thinking of getting started @public, regardless..

We have an incredible concierge team that is ready to help- @MarkFromPublic and myself are pretty active here on X. If you need anything don't hesitate to reach us 🫡

[Mark Pelletier @MarkFromPublic]

@PSInvestor @WheelieInvestor @public Love working with you guys! We’re just getting started 💪

[Jannick Malling @malling]

"Every time I have more than $10k in my linked bank accounts yielding ~0%, sweep into Public's 3.7% Treasury account"

Cash management with Agents is here

Never worry about leaving yield on the table again

[Mark Pelletier @MarkFromPublic]

@Dividend_Ken @DividendPanda74 @Fidelity @IBKR @public Give @public a try! We have some unique income investing features.

Happy to be a resource as you weigh your options.

[Mark Pelletier @MarkFromPublic]

@PSInvestor On it 🫡

[Public @public]

May 2026 Feature Release Roundup 🧵

[The Rollup @therollupco]

Stephen Sikes (@Sikes_) on Why @public's Agentic Brokerage Changes Everything

Timestamps
00:00 Intro And Background
01:18 Platform For Serious Investors
02:26 Alpha AI Research Assistant
03:53 Claude Opus Triggered Pivot
04:36 Agentic Brokerage Goes Live
05:22 Platform Shift Mobile To AI
06:03 Direct To Consumer API
13:02 Covered Call Via Agent
14:24 Deterministic Workflow Explained
15:25 Robinhood MCP Announcement
16:40 Public Beats Robinhood Here
21:00 Crypto As Asset Class Only
25:33 Walk The Bid Order
28:29 Can't Vibe Code Trading
30:36 No Layoffs AI Adds More
33:36 Growth Firms Always Win

[Mark Pelletier @MarkFromPublic]

@CalebInvests_ This is your Bud Fox moment...

[Mark Pelletier @MarkFromPublic]

@thinktrade_ @public Shoot me a DM and we'll get you sorted 🤖

[Mark Pelletier @MarkFromPublic]

X can be one of the best places to learn about any topic if you follow the right people.

If you are interested in using AI for investing, here's who I'd start with:

@ivincentdelisi
@JasonL_Capital
@WheelieInvestor
@BuildwithPublic

If you know (or are) someone building in this space, I'd love to connect

[The Rollup @therollupco]

🚨LIVE: SoFi Stablecoin!? HYPE ETFs Set Record. Public COO Talks AI Agents & Kyle Reidhead In The Tower https://t.co/h6kPy4n68v

[Mark Pelletier @MarkFromPublic]

@InvestorKev_ @public Give it a look! Would love to hear your feedback.

[Stephen Sikes @Sikes_]

Fully integrated agentic experience with access to equities, options, crypto etc

vs….

an MCP for equities (?)

We are not the same.

[Mark Pelletier @MarkFromPublic]

Agents are getting more powerful by the day!

[Public @public]

https://t.co/LEYFAkMOuH

[Mark Pelletier @MarkFromPublic]

@WheelieInvestor @public No - you can freely transfer it whenever and the interest is calculated daily

[Mark Pelletier @MarkFromPublic]

One of the easiest uses of Agents on @public is dialing in your recurring investments, or creating "Conditional DCAs."

I've always hated that my recurring buys hit at market open. Widest spreads, choppiest action, and often the worst price of the day.

Fixed it with an Agent: only buy between 10–11 AM or 3–3:45 PM, and only when the stock is down >0.25% that day, with a Friday fallback so I never miss a contribution.

DCA, but with execution standards.

[Mark Pelletier @MarkFromPublic]

@TarricSookdeo This and conditional DCA / investment plans are major unlocks for long term investing

[Mark Pelletier @MarkFromPublic]

If you're not following Matthew, you should be.

He might be the only trader on X working at a brokerage who's building in public like this — sharing the actual tools, strategies, and workflows he's running on @public's API in real time.

[Matthew@Public @BuildwithPublic]

Got my mean-reversion equities execution engine live this morning on @public API

Running 84 tickers- Entry levels derived entirely from the SDK's own historical bars (intraday + monthly)

Broker holds the stop, engine holds the target. Closed P&L reconciled FIFO straight from transaction history.

Maps cleanly to 4 endpoints:

historical data → levels
portfolio → state
place_order → entries
history → P&L truth

Retail traders have access to REAL infrastructure now- build with this now and you will be running CIRCLES around every other trader still point click and looking at charts

DM me - I will build with you- We can get on calls at 8pm, midnight, I don't care. I want you succeed here as a trader- I've been trading for over 15 years, this is unlike anything that has ever been available to retail traders

Now is the time to lock in and put in the work 🦾