Optimize your TSLA investment
by circumventing bear periods with SLIM signals.
Watch the bears from the side instead of riding them.
High Performance
Investing with SLIM signals can more than 100-fold your return or double your annualized performance, respectively, in the long term.
Profound Analysis
My Stop Loss Investment Models are the result of many years of analysing stock markets, indicators, patterns, dependencies, etc.
Inexpensive
For only CHF 29 (≈ USD 36 / EUR 31) a month, you get the SLIM on TSLA trigger signals, allowing you to optimize the return of your TSLA position.
Step Aside When The Bears Appear
Owning stocks can be quite a rollercoaster ride. Stock markets and share prices move up and down. In technical terms: Their volatility is high. Wouldn’t it be amazing to stand aside in down periods, watch the bears roam and rejoin the action when the bulls take over again?
This is what SLIM Systems tries achieve and offers to holders of Tesla shares (TSLA): Over the course of many years, I have built SLIM, a trend recognition system that attempts to detect beginnings and endings of bear periods.
SLIM on TSLA performance Jan – Sep 2025:
- TSLA: +4.2%
- SLIM on TLSA long only: +53.2%
- SLIM on TSLA long/short: +103.7%
(Results from Backtesting)
For a small monthly fee, you can become a SLIM subscriber and receive immediate notifications (by email and/or SMS) about buy and sell signals from SLIM.
SLIM Systems does not provide any financial advice. Please read the Disclaimer and the Terms of Service before subscribing.
About SLIM Systems
Being a long-term stock investor since my 20ies, this question bugged me more and more: How can I circumvent bear periods? Years of research and analysis followed, which resulted in a first product called SLIM on SPI (Swiss Performance Index). When I became a Tesla Investor myself, I started to build SLIM on TSLA.
What is SLIM on TSLA?
SLIM on TSLA is a trend recognition system that aims to detect the beginnings and endings of down periods (so called bear markets) in the Tesla share price (TSLA). By using the signals of SLIM on TSLA, a Tesla shareholder can step aside in bear markets and thus improve the long-term performance of his TSLA position by an order of magnitude or even more (depending on the implementation).
How to use SLIM on TSLA?
SLIM on TSLA runs its analysis of the Tesla share price on a daily basis. If the analysis results in a buy or sell signal, the subscribers are immediately informed. They can then use the signal for their implementation and strategy of their choice, e.g. sell the entire TSLA position on a sell signal and reinvest on the next buy signal.
The Main Principles of SLIM
SLIM has been working beautifully so far because the development of the system followed these guiding principles:
Stay invested
SLIM is a system to optimize long investments. Therefore, it aims to be long and benefit of positive market tendencies whenever possible.
Long-term focus
SLIM does not claim to detect short-term price movements. Is is designed to detect medium-term trend reversals.
Transactions matter
Transactions come with fees and slippage, so SLIM is tuned to find the right balance between too many transactions and waiting too long into a trend reversal.
516307%
Performance
2011.06 – 2025.09
36%
Upside Vola 3 Years
2022.10 – 2025.09
15%
Downside Vola 3 Years
2022.10 – 2025.09
10+
Years of Experience in Analyzing Trend Indicators
Inexpensive Subsription Plan
For a small monthly subscription fee, you will get the SLIM on TSLA signals and can start optimizing your investment by circumventing the bear periods.
SLIM on TSLA
for PRIVATE investors
CHF 29
per month
Receive the SLIM on TSLA buy and sell signals by email and/or text message (SMS; not available in all countries).
Cancel subscription any time.
SLIM on TSLA
for PROFESSIONAL purposes
Quote on Request
monthly or quarterly billing
Receive the SLIM on TSLA buy and sell signals by email and/or text message (SMS; not available in all countries).
Cancel subscription any time.
Frequently Asked Questions
What does SLIM stand for?
The main question that led to the development of SLIM was: Is there a way to detect and circumvent bear periods, i.e. step aside in the beginning of a bear market and limit the losses? This original idea constitutes the company and product name: SLIM = Stop Loss Investment Model.
Where do the KPIs about SLIM products on this website come from?
The published performance and risk indicators of SLIM derive from backtesting over long periods (e.g. in the case of SLIM on TSLA: starting 2011). This backtesting simulates transactions at a specific price (e.g. open price) upon generation of a buy/sell signal. Check my How-to page for more information.
What’s the target audience of SLIM Systems?
Subscribers should be knowledgeable investors who understand the difficulties in recognizing financial market trends, the limits of attempts to do so and the risks of investing with stocks, derivatives and other financial instruments.
Will SLIM perform as well in the future as it did in the past?
In the backtests, the system performs well even if only turned on for 1 year (check page 2 of SLIM fact sheets with results of running SLIM over short sub-periods in quarterly intervals since 2011). Despite this showing the robustness of SLIM, there’s no guarantee that future results will be as amazing. Investing rule #1: Past (backtesting) results are no indication of future results.
TESTIMONIALS
Still undecided?
Hear what my valued subscribers have to say.
Marc L
TSLA Investor since 2019
The backtesting results of SLIM are impressive, and I’m eager to grow my number of TSLA shares with the SLIM signals. Roger is a friendly chap who replies to questions quickly and professionally.
Vanessa K
Tech Stocks Nerd
Besides constantly researching about the fundamentals of tech stocks, I do trend and technical analysis myself. I’m curious to see where the SLIM signals confirm my assessment of TSLA and where they contradict it.
Thomas M
Hodler of Magnificient-7 Portfolio
While I’m a big fan of Tesla and convinced of the bright future of the company, the volatility drives me crazy sometimes. Looking forward to use the SLIM signals to keep some bears out of my portfolio 😉
Contact me
Have a question? If you couldn’t find the answer in the FAQ, please send me an e-mail, and I’ll be happy to get in touch with you as quickly as possible.
The Human Side of SLIM Systems
Find out who wants to help you avoid wild bear rides.
Roger Rusch
Founder & Owner
In my professional career, I had been in Swiss banking for almost 15 years and started to develop trend recognition systems more than 10 years ago.