Just for a tiny clarification: "...the rules are written by the owners of this casino" is not exactly correct. Casinos are regulated in nearly every jurisdiction, nearly all have minimum payout rules for applicable games and maximum takes for others. The securities rules, in the US, are written by the participants and are deeply obscured and undisclosed, mostly. Thus the securities game is far riskier than casino poker, say, o even slot machines. In the securities game the actual fees are NEVER disclosed to retail purchasers. In casinos they always are disclosed.
FWIW, by bizarre coincidence one of my colleagues worked with me on the operating system integration of a huge Wall Street firm forced takeover in the 2008 affair. He subsequently led an operating system update for a major US Casino operator. From my discussions with him it was obvious that casino systems were clear, fairly simple, fully disclosed and reported to regulators through exacting audits by multiple parties. By contrast the major securities firms have no reporting required in multiple areas, and long time delays in others. There are always substantial areas undisclosed which include multiple fees and operating payments.
It is only through my associate's dual experiences that the scope of all this became clear. Clear because the securities version is deeply opaque. Further, the term 'owners' itself is a bit too specific, since even that has some significant ambiguities. The wiki explains DTCC without explaining anything, NOT an accident:
Depository Trust & Clearing Corporation - Wikipedia. Among the cleverest non-informational information is found here:
DTCC is firmly committed to preserving the safety and soundness of its operations and protecting its reputation in the global financial community.
www.dtcc.com
To be clear: my personal experience dated from the 1973 establishment of DTC, which obviated the courier industry. Multilateral meeting was the largest challenge then so the NSSC in 1976. It was those two and their implementation that ended out facilitating much of the nefarious activity because almost every State regulation was eliminated when these two central organizations were created. They now gradually has grown to encompass most global securities trading. In turn two products: Global Custody and Global Master Trust acted to further insulate securities transactions from much significant regulatory oversight. I worked very naively on both of those, at one time visiting more than 100 countries within a four month period to help establish comprehensive coverage.
Nearly everyone I ever encountered was very well informed operationally and totally ignorant of the implications. That applied to me. Bluntly, I finally connected the dots in 2008, when I worked on a number of the major deals. I felt angered and ashamed because it was so entirely obvious that very, very few people had any idea what the were doing. As I have said repeatedly that included Nobel Prize winners.
People who play in the securities market on buy and hold unless a major defect happens to the issuer of the securities usually do well.
Mutual funds, derivatives regardless of type, or dealing with non-member brokers nearly always lose, often after a short period of huge gains. Common stocks that have high volatility are guaranteed to harm anyone who does not buy and hold. The system has been carefully designed to strip active traders from their wealth as soon as possible. Mutual funds are designed to do that with a slightly higher degree of finesse.
Diversification is a good thing, but I only works when the investor knows exactly what each portfolio item represents. Warren Buffet, vilified by some because he avoided technology because he did not understand it, has had a wise and durable policy never to buy something he did not understand. That is always wise.
Buying TSLA for many, perhaps most, of us I very prudent because we all know the company, its' warts and risks. In my own portfolio I do have multiple investments. Every one I watch closely. One major one I sold last year when top management changed. If material negative events happen to TSLA I would sell also. As always the major problem is to know what is material and what is a transitory setback. Sound investment si hard work. Ben Graham was really correct. The fact is that the knowledge one needs to do value investing today is different than it was for him. Today information access makes value investing much harder work because it is so much easier to find both value and anti-value and so much more difficult to understand which is which.
In our parochial terms:
Tesla vs Fisker, Workhorse or Rivian. CATL vs LG, Panasonic, Northvolt or SK. How about BYD? There are so many others, but most of our time and effort is spent on legacy ICE, nearly all of which will gradually or quickly diminish in relevance. So , short the sure losers? No, not a chance for me, anyway. Those legacy ones have deep and lucrative ties to the same people who 'own' the securities industry. Thus, they'll worker continuing government bailouts with soft landings because that si what they always, always do. They aren't about to lose their profits. They will let the stopped shells fail, or those who don't play by their 'rules'.
For reference look at Lehman Brothers; Bear, Stearns; AIG, LTCM. Those were all highly profitable, highly visible and too arrogant to the wrong people so that were annihilated. That pattern repeats with every crisis. They'll not be too upset to see Stellantis go, although Italy and France may win the day for them. Ford and GM will have the Bank of America, Wachovia, or Merrill Lynch solution in one version or another.
As investors we really need to avoid becoming collateral damage. Never, ever engage in leveraged transactions in a rising interest rate environment. NEVER.
OK, my disclosure: That's what I do. It is not advice because I have no license to offer advice. To be explicit: I now have exactly zero debt. Thus, I resemble pretty much the Tesla posture, maintain positive cash flow, as positive as possible. Take no new debt that is not easily paid by current assets. Each or my personal equity investments has a similar policy.