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Historical Archive: Correcting the Old Securities Physics Download Post

This article was first published on March 5, 2013. The old version directly linked to unofficial file-host copies of two copyrighted books and repeated promotional language implying high success rates and investment-risk avoidance. Neither the authorization behind those links nor the safety of the files could be verified, so every link has been removed. This page no longer provides mirrors, cracks, passwords, file-transfer instructions, or ways to bypass payment or digital rights management.

Correction: why the old download links were removed

The old links led to third-party file-hosting pages, not an official publisher, author, or library service. I have no evidence that the full scanned books were distributed with the rightsholder's permission, and I cannot establish whether the files were replaced, bundled with malicious content, or used to collect visitor data.

China's current Copyright Law lists written works as protected works and includes reproduction, distribution, and communication through information networks among a rightsholder's rights. Whether a statutory exception or fair use applies depends on the jurisdiction, purpose, and specific facts. A file being downloadable does not make it lawful to copy, share, or republish. Removing the links and no longer facilitating distribution is therefore the responsible correction.

Version information confirmed as of September 1, 2026

The current Shanghai University of Finance and Economics Press catalog confirms that both books were published:

Title	Publisher catalog record	Current digital-edition conclusion
Securities Physics (Volume 1): Principles and Applications	Peng Shangqiang; published January 2011; ISBN 978-7-5642-0947-6	The publisher page says there is no resource download.
Securities Physics (Volume 2): Candlestick Code	Peng Shangqiang; published August 2011; ISBN 978-7-5642-1107-3	The publisher page says there is no resource download.

This also corrects the old article's timeline. When it was published in 2013, Volume 2 had already been published; it was not still “being written” for an expected May–June 2011 release.

The publisher pages include print-book information and online purchase entry points, but I did not place an order and cannot confirm current stock, delivery, or price in any region. “No resource download” means only that the publisher's current page does not offer one. It does not prove that no other authorized digital edition has ever existed. Ask the publisher, author, or an explicitly authorized retailer about an ebook or accessible edition.

An official Sichuan University course description also records an undergraduate elective called “Securities Physics,” taught by Peng Shangqiang, with self-compiled course materials. This supports the historical existence of the course and materials; it does not validate the accuracy or returns of an investment method.

The investment claims also require correction

The old article described financial markets as obeying physical laws and suggested that understanding those principles and intervening at the right time could avoid most risk and make returns highly probable. Those are views presented by the book or author, not conclusions independently verified here.

China Securities Regulatory Commission investor-education material states that securities returns are uncertain, risk and return coexist, and higher risk does not mean that a higher return is certain. Candlesticks, physical analogies, and any other technical analysis cannot guarantee profit or remove market, liquidity, model, execution, or behavioral risk. These books should be read as one point of view, not as trading signals or investment advice.

Lawful acquisition checklist

1. Identify the edition from the publisher record

Match the full title, author, and ISBN; do not rely on a cover image or a vague “high-definition edition” label.
Prefer the publisher page as the route to its official sales channels. Check the seller, stock, price, edition, and return rules again before paying.
If official channels have no stock, ask a reputable bookseller about an order or look for a used print copy whose ISBN, printing, and actual photographs can be checked.

2. Search libraries

Search public, university, and union library catalogs using both ISBNs.
If a local library has no copy, ask about interlibrary loan, document delivery, or on-site consultation. Availability depends on holdings, licences, and local rules.
Do not share library accounts, temporary access links, or restricted electronic resources, and do not bypass loan periods or access controls.

3. Verify digital and accessible editions separately

Accept a digital edition only when the publisher, rightsholder, or authorized distributor is identified. Keep the order, licence terms, and edition details.
The publisher's current pages do not provide official resource downloads, so a PDF with the same title should not automatically be treated as authorized.
If you need OCR, searchable text, or another format for accessibility or research, first ask the publisher or library for an accessible copy. Whether making a local conversion is allowed depends on applicable law and the licence.

Migrating a lawful copy to a new device

1. Make an asset inventory

Record the title, author, ISBN, purchase or loan source, file format, licence restrictions, and location of annotations. Keep receipts or permission emails with the bibliographic record, but do not store passwords or complete payment details in a shared folder.

2. Preserve the original before replacing anything

For a DRM-free file whose licence permits copying, retain a read-only original before making a working copy.
Calculate a SHA-256 checksum before and after transfer to detect accidental change. A matching checksum shows only that the bytes did not change; it does not prove lawful origin or safety.
Transfer over encrypted storage, a protected local network, or trusted storage. Do not send a complete book through an anonymous converter, temporary file host, or unfamiliar chatbot.

3. Use the original service’s migration path

For an ebook tied to an account or digital rights management, use the seller's or library's own redownload, device-authorization, and sync functions.
While the old device still works, export bookmarks, annotations, or citations using the reader's supported method. Verify them on the new device before removing the old copy.
Do not use cracking tools to strip digital rights management or give account details, device-authorization files, or decryption keys to a third party.

4. Validate the migrated copy

Sample the first page, table of contents, illustrated pages, Chinese fonts, page numbers, search, and annotations. Confirm that the backup can be restored before clearing temporary copies; handle expired loan files according to the service's rules.

When an “ebook” comes from an unknown source

An ebook normally does not require an installer, browser extension, mobile installation package, or remote-control tool. Stop if a download asks you to run an executable, disable security software, enter a system password, pay to unpack it, or grant access to contacts.
Do not trust a file merely because its extension says PDF. File names can be disguised, and PDF readers can have vulnerabilities. Update the operating system and reader before scanning with current local security tools.
On Windows 10 or 11, Microsoft's instructions explain how to right-click a file and scan it with Microsoft Defender. If infection is suspected, run a full scan or Defender Offline scan. Do not add a security exclusion merely to open a file.
macOS Gatekeeper and XProtect provide system-level protection for applications and known malicious content, but they do not prove that a file is authorized and cannot replace source verification.
Do not upload a file containing private annotations, order data, or licence-restricted content to a public online scanner or converter. If an institutional security team must analyze it, confirm its confidentiality, retention, and copyright-handling rules first.

If you already ran a suspicious installer or entered account details, stop using the file, update the system and security intelligence, and complete a full scan. Change potentially exposed passwords from a known-clean device, and review account sessions and payment records. If you cannot establish that the system is clean, seek trusted technical support and restore from a clean backup made before the incident.

Current conclusion

Both Securities Physics volumes have print-book records that can be checked with the publisher, and Volume 2 was published in 2011. The publisher's current pages do not provide official resource downloads, however, and I found insufficient first-party evidence to confirm a currently purchasable authorized ebook or real-time print stock.

This page therefore links only to official publisher, university, regulator, and operating-system vendor sources. To read the books, search the publisher, reputable booksellers, or libraries by ISBN. To migrate them, handle only a lawfully acquired copy that its licence permits you to copy. Evaluate the investment arguments independently; they are not a return or risk-avoidance guarantee.

Primary sources checked

Checked on September 1, 2026. Stock, authorized digital editions, and licence terms can change; confirm them again on the day you buy, borrow, or migrate a copy.