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Build · demo

Paper simulator

A live model portfolio, priced against end-of-day market prices (source: massive-eod). Sign in to build and trade your own.

Total value

$29,204.11

Total P&L

$9,204.11 · +46.02%

Uninvested cash

$936.10

Holdings value

$28,268.01

Starting cash

$20,000.00

Marked as of 2026-06-18 (end-of-day). Weights move with each nightly EOD mark.

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TickerQtyAvg costPriceUnrl. P&LWeight

VRTVertiv

17$138.90$333.05$3,300.5519.4%

TSMTSMC

11$224.50$462.12$2,613.8217.4%

RMBSRambus

36$68.20$141.17$2,626.9217.4%

NVDANVIDIA

14$178.40$210.69$452.0610.1%

AVGOBroadcom

7$312.70$411.35$690.559.9%

ETNEaton

6$362.70$421.77$354.428.7%

PLTRPalantir

17$142.60$128.47-$240.217.5%

MSFTMicrosoft

5$498.20$379.40-$594.006.5%

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This is a read-only demo of a model portfolio. Create your own paper account to buy and sell against live end-of-day prices.

Exposure

Where you sit in The AI Web

Top of Stack

Application

7.7%

AI Model

—

Software Infra

—

Edge & Physical AI

—

Security

18%

18.0%

Physical

Cloud

6.7%

Thermal

—

Power Semis

—

DC Power

20%

20.0%

Grid

9.0%

Power Gen

—

Silicon Core

Compute

21%

20.6%

Memory

—

Interconnect

—

Packaging

18%

18.0%

Fab Chain· no exposure

Foundry

—

Equipment

—

Materials

—

Minerals

—

◈You're 39% Silicon Core with zero exposure to Fab Chain. Exposure is spread across the chain.

⚠ Shared chokepoint concentration

NVIDIA CUDA + the Broadcom/Marvell ASIC duopoly (~95% combined)

NVDA · AVGO

20.6%

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End-of-day market prices (source: massive-eod) — for paper trading only, not investment advice. A few illiquid names may use a fallback price. Kalavya.